10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2017

OR

c Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the Transition Period from                      to 

Commission File Number	Exact Name of Registrant; State of Incorporation; Address and Telephone Number of Principal Executive Offices	I.R.S. Employer Identification No.
001-32871	COMCAST CORPORATION	27-0000798
	PENNSYLVANIA One Comcast Center Philadelphia, PA 19103-2838 (215) 286-1700
001-36438	NBCUNIVERSAL MEDIA, LLC	14-1682529
	DELAWARE 30 Rockefeller Plaza New York, NY 10112-0015 (212) 664-4444

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Comcast Corporation	Yes	x	No	c
NBCUniversal Media, LLC	Yes	x	No	c

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such period that the registrant was required to submit and post such files).

Comcast Corporation	Yes	x	No	c
NBCUniversal Media, LLC	Yes	x	No	c

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Comcast Corporation	Large accelerated filer	x	Accelerated filer	c	Non-accelerated filer	c	Smaller reporting company	c	Emerging growth company	c
NBCUniversal Media, LLC	Large accelerated filer	c	Accelerated filer	c	Non-accelerated filer	x	Smaller reporting company	c	Emerging growth company	c

If an emerging growth company, indicate by check mark whether the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Comcast Corporation	c
NBCUniversal Media, LLC	c

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

Comcast Corporation	Yes	c	No	x
NBCUniversal Media, LLC	Yes	c	No	x

Indicate the number of shares outstanding of each of the registrant’s classes of stock, as of the latest practical date:

As of September 30, 2017, there were 4,664,327,455 shares of Comcast Corporation Class A common stock and 9,444,375 shares of Comcast Corporation Class B common stock outstanding.

Not applicable for NBCUniversal Media, LLC.

NBCUniversal Media, LLC meets the conditions set forth in General Instruction H(1)(a) and (b) of Form 10-Q and is therefore filing this form with the reduced disclosure format.

TABLE OF CONTENTS

		Page Number
PART I. FINANCIAL INFORMATION
Item 1.	Comcast Corporation Financial Statements	1
	Condensed Consolidated Balance Sheet as of September 30, 2017 and December 31, 2016 (Unaudited)	1
	Condensed Consolidated Statement of Income for the Three and Nine Months Ended September 30, 2017 and 2016 (Unaudited)	2
	Condensed Consolidated Statement of Comprehensive Income for the Three and Nine Months Ended September 30, 2017 and 2016 (Unaudited)	3
	Condensed Consolidated Statement of Cash Flows for the Nine Months Ended September 30, 2017 and 2016 (Unaudited)	4
	Condensed Consolidated Statement of Changes in Equity for the Nine Months Ended September 30, 2017 and 2016 (Unaudited)	5
	Notes to Condensed Consolidated Financial Statements (Unaudited)	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	40
Item 4.	Controls and Procedures	40
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	40
Item 1A.	Risk Factors	41
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	41
Item 5.	Other Information	41
Item 6.	Exhibits	42
SIGNATURES		43
NBCUniversal Media, LLC Financial Statements		44

Explanatory Note

This Quarterly Report on Form 10-Q is a combined report being filed separately by Comcast Corporation (“Comcast”) and NBCUniversal Media, LLC (“NBCUniversal”). Comcast owns all of the common equity interests in NBCUniversal, and NBCUniversal meets the conditions set forth in General Instruction H(1)(a) and (b) of Form 10-Q and is therefore filing its information within this Form 10-Q with the reduced disclosure format. Each of Comcast and NBCUniversal is filing on its own behalf the information contained in this report that relates to itself, and neither company makes any representation as to information relating to the other company. Where information or an explanation is provided that is substantially the same for each company, such information or explanation has been combined in this report. Where information or an explanation is not substantially the same for each company, separate information and explanation has been provided. In addition, separate condensed consolidated financial statements for each company, along with notes to the condensed consolidated financial statements, are included in this report. Unless indicated otherwise, throughout this Quarterly Report on Form 10-Q, we refer to Comcast and its consolidated subsidiaries, including NBCUniversal and its consolidated subsidiaries, as “we,” “us” and “our;” Comcast Cable Communications, LLC and its consolidated subsidiaries as “Comcast Cable;” Comcast Holdings Corporation as “Comcast Holdings;” NBCUniversal, LLC as “NBCUniversal Holdings;” and NBCUniversal Enterprise, Inc. as “NBCUniversal Enterprise.”

This Quarterly Report on Form 10-Q is for the three and nine months ended September 30, 2017. This Quarterly Report on Form 10-Q modifies and supersedes documents filed before it. The Securities and Exchange Commission (“SEC”) allows us to “incorporate by reference” information that we file with it, which means that we can disclose important information to you by referring you directly to those documents. Information incorporated by reference is considered to be part of this Quarterly Report on Form 10-Q. In addition, information that we file with the SEC in the future will automatically update and supersede information contained in this Quarterly Report on Form 10-Q.

You should carefully review the information contained in this Quarterly Report on Form 10-Q and particularly consider any risk factors set forth in this Quarterly Report on Form 10-Q and in other reports or documents that we file from time to time with the SEC. In this Quarterly Report on Form 10-Q, we state our beliefs of future events and of our future financial performance. In some cases, you can identify these so-called “forward-looking statements” by words such as “may,” “will,” “should,” “expects,” “believes,” “estimates,” “potential,” or “continue,” or the negative of these words, and other comparable words. You should be aware that these statements are only our predictions. In evaluating these statements, you should consider various factors, including the risks outlined below and in other reports we file with the SEC. Actual events or our actual results could differ materially from our forward-looking statements as a result of any such factors, which could adversely affect our businesses, results of operations or financial condition. We undertake no obligation to update any forward-looking statements.

Our businesses may be affected by, among other things, the following:

• our businesses currently face a wide range of competition, and our businesses and results of operations could be adversely affected if we do not compete effectively

• changes in consumer behavior driven by new technologies and distribution platforms for viewing content may adversely affect our businesses and challenge existing business models

• a decline in advertisers’ expenditures or changes in advertising markets could negatively impact our businesses

• our businesses depend on keeping pace with technological developments

• we are subject to regulation by federal, state, local and foreign authorities, which may impose additional costs and restrictions on our businesses

• changes to existing statutes, rules, regulations, or interpretations thereof, or adoption of new ones, could have an adverse effect on our businesses

• programming expenses for our video services are increasing, which could adversely affect our Cable Communications segment’s video business

• NBCUniversal’s success depends on consumer acceptance of its content, and its businesses may be adversely affected if its content fails to achieve sufficient consumer acceptance or the costs to create or acquire content increase

• the loss of NBCUniversal’s programming distribution agreements, or the renewal of these agreements on less favorable terms, could adversely affect its businesses

• we rely on network and information systems and other technologies, as well as key properties, and a disruption, cyber attack, failure or destruction of such networks, systems, technologies or properties may disrupt our businesses

• we may be unable to obtain necessary hardware, software and operational support

• weak economic conditions may have a negative impact on our businesses

• our businesses depend on using and protecting certain intellectual property rights and on not infringing the intellectual property rights of others

• acquisitions and other strategic initiatives, including the launch of our wireless phone service, present many risks, and we may not realize the financial and strategic goals that we had contemplated

• labor disputes, whether involving employees or sports organizations, may disrupt our operations and adversely affect our businesses

• the loss of key management personnel or popular on-air and creative talent could have an adverse effect on our businesses

• we face risks relating to doing business internationally that could adversely affect our businesses

• our Class B common stock has substantial voting rights and separate approval rights over several potentially material transactions, and our Chairman and CEO has considerable influence over our company through his beneficial ownership of our Class B common stock

PART I: FINANCIAL INFORMATION

ITEM 1: FINANCIAL STATEMENTS

Comcast Corporation

Condensed Consolidated Balance Sheet

(Unaudited)

(in millions, except share data)	September 30, 2017			December 31, 2016
Assets
Current Assets:
Cash and cash equivalents	$	4,114		$	3,301
Receivables, net	7,915			7,955
Programming rights	1,779			1,250
Other current assets	2,152			3,855
Total current assets	15,960			16,361
Film and television costs	6,796			7,252
Investments	6,695			5,247
Property and equipment, net of accumulated depreciation of $49,943 and $49,694	37,856			36,253
Franchise rights	59,364			59,364
Goodwill	36,752			35,980
Other intangible assets, net of accumulated amortization of $12,371 and $11,013	18,733			17,274
Other noncurrent assets, net	3,145			2,769
Total assets	$	185,301		$	180,500
Liabilities and Equity
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	$	6,976		$	6,915
Accrued participations and residuals	1,811			1,726
Deferred revenue	1,572			1,132
Accrued expenses and other current liabilities	5,849			6,282
Current portion of long-term debt	5,241			5,480
Total current liabilities	21,449			21,535
Long-term debt, less current portion	59,720			55,566
Deferred income taxes	35,602			34,854
Other noncurrent liabilities	10,914			10,925
Commitments and contingencies (Note 10)
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	1,353			1,446
Equity:
Preferred stock—authorized, 20,000,000 shares; issued, zero	—			—
Class A common stock, $0.01 par value—authorized, 7,500,000,000 shares; issued, 5,537,118,483 and 5,614,950,039; outstanding, 4,664,327,455 and 4,742,159,011	55			56
Class B common stock, $0.01 par value—authorized, 75,000,000 shares; issued and outstanding, 9,444,375	—			—
Additional paid-in capital	37,529			38,230
Retained earnings	24,979			23,076
Treasury stock, 872,791,028 Class A common shares	(7,517		)	(7,517		)
Accumulated other comprehensive income (loss)	381			98
Total Comcast Corporation shareholders’ equity	55,427			53,943
Noncontrolling interests	836			2,231
Total equity	56,263			56,174
Total liabilities and equity	$	185,301		$	180,500

See accompanying notes to condensed consolidated financial statements.

1

Comcast Corporation

Condensed Consolidated Statement of Income

(Unaudited)

	Three Months Ended September 30						Nine Months Ended September 30
(in millions, except per share data)	2017			2016			2017			2016
Revenue	$	20,983		$	21,319		$	62,611		$	59,378
Costs and Expenses:
Programming and production	6,077			7,003			18,492			17,926
Other operating and administrative	6,423			5,996			18,310			17,285
Advertising, marketing and promotion	1,553			1,485			4,748			4,510
Depreciation	1,991			1,865			5,876			5,518
Amortization	589			530			1,747			1,544
Other operating gains	(442		)	—			(442		)	—
	16,191			16,879			48,731			46,783
Operating income	4,792			4,440			13,880			12,595
Other Income (Expense):
Interest expense	(766		)	(751		)	(2,279		)	(2,186		)
Investment income (loss), net	82			80			205			168
Equity in net income (losses) of investees, net	(39		)	(34		)	12			(64		)
Other income (expense), net	27			(11		)	82			104
	(696		)	(716		)	(1,980		)	(1,978		)
Income before income taxes	4,096			3,724			11,900			10,617
Income tax expense	(1,413		)	(1,400		)	(4,035		)	(3,989		)
Net income	2,683			2,324			7,865			6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33		)	(87		)	(136		)	(229		)
Net income attributable to Comcast Corporation	$	2,650		$	2,237		$	7,729		$	6,399
Basic earnings per common share attributable to Comcast Corporation shareholders	$	0.56		$	0.47		$	1.64		$	1.32
Diluted earnings per common share attributable to Comcast Corporation shareholders	$	0.55		$	0.46		$	1.61		$	1.31
Dividends declared per common share	$	0.1575		$	0.1375		$	0.4725		$	0.4125

See accompanying notes to condensed consolidated financial statements.

2

Comcast Corporation

Condensed Consolidated Statement of Comprehensive Income

(Unaudited)

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Net income	$	2,683		$	2,324		$	7,865		$	6,628
Unrealized gains (losses) on marketable securities, net of deferred taxes of $35, $—, $26 and $(1)	(59		)	(1		)	(42		)	2
Deferred gains (losses) on cash flow hedges, net of deferred taxes of $(9), $(7), ($16) and $46	16			12			28			(79		)
Amounts reclassified to net income:
Realized (gains) losses on marketable securities, net of deferred taxes of $—, $—, $— and $1	(1		)	—			(1		)	(1		)
Realized (gains) losses on cash flow hedges, net of deferred taxes of $7, $(6), $15 and $(42)	(12		)	11			(26		)	73
Employee benefit obligations, net of deferred taxes of $3, $—, $(30) and $(2)	(6		)	—			51			2
Currency translation adjustments, net of deferred taxes of $(8), $(6), $(47) and $(122)	20			45			166			532
Comprehensive income	2,641			2,391			8,041			7,157
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33		)	(87		)	(136		)	(229		)
Other comprehensive (income) loss attributable to noncontrolling interests	(5		)	(34		)	(87		)	(321		)
Comprehensive income attributable to Comcast Corporation	$	2,603		$	2,270		$	7,818		$	6,607

See accompanying notes to condensed consolidated financial statements.

3

Comcast Corporation

Condensed Consolidated Statement of Cash Flows

(Unaudited)

	Nine Months Ended September 30
(in millions)	2017			2016
Net cash provided by operating activities	$	15,961		$	13,989
Investing Activities
Capital expenditures	(6,839		)	(6,562		)
Cash paid for intangible assets	(1,240		)	(1,163		)
Acquisitions and construction of real estate properties	(325		)	(303		)
Acquisitions, net of cash acquired	(429		)	(3,904		)
Proceeds from sales of investments	120			188
Purchases of investments	(2,064		)	(618		)
Deposits	—			(1,748		)
Other	750			(42		)
Net cash provided by (used in) investing activities	(10,027		)	(14,152		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(2,807		)	610
Proceeds from borrowings	11,460			9,231
Repurchases and repayments of debt	(5,021		)	(2,994		)
Repurchases of common stock under repurchase program and employee plans	(4,212		)	(4,061		)
Dividends paid	(2,147		)	(1,944		)
Purchase of Universal Studios Japan noncontrolling interests	(2,299		)	—
Issuances of common stock	—			23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(198		)	(194		)
Other	103			4
Net cash provided by (used in) financing activities	(5,121		)	675
Increase (decrease) in cash and cash equivalents	813			512
Cash and cash equivalents, beginning of period	3,301			2,295
Cash and cash equivalents, end of period	$	4,114		$	2,807

See accompanying notes to condensed consolidated financial statements.

4

Comcast Corporation

Condensed Consolidated Statement of Changes in Equity

(Unaudited)

	Redeemable Noncontrolling Interests and Redeemable Subsidiary Preferred Stock			Common Stock					Additional Paid-In Capital			Retained Earnings			Treasury Stock at Cost			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interests			Total Equity
(in millions)				A			B
Balance, December 31, 2015	$	1,221		$	57		$	—	$	38,490		$	21,413		$	(7,517	)	$	(174	)	$	1,709		$	53,978
Stock compensation plans									582															582
Repurchases of common stock under repurchase program and employee plans				(1		)			(758		)	(3,303		)										(4,062		)
Employee stock purchase plans									117															117
Dividends declared												(1,999		)										(1,999		)
Other comprehensive income (loss)																		208			321			529
Contributions from (distributions to) noncontrolling interests, net	(20		)																		(99		)	(99		)
Other	62								(33		)										245			212
Net income (loss)	63											6,399									166			6,565
Balance, September 30, 2016	$	1,326		$	56		$	—	$	38,398		$	22,510		$	(7,517	)	$	34		$	2,342		$	55,823
Balance, December 31, 2016	$	1,446		$	56		$	—	$	38,230		$	23,076		$	(7,517	)	$	98		$	2,231		$	56,174
Stock compensation plans									440															440
Repurchases of common stock under repurchase program and employee plans				(1		)			(633		)	(3,587		)										(4,221		)
Employee stock purchase plans									140															140
Dividends declared												(2,239		)										(2,239		)
Other comprehensive income (loss)																		89			87			176
Contributions from (distributions to) noncontrolling interests, net	(31		)																		(81		)	(81		)
Purchase of Universal Studios Japan noncontrolling interests									(696		)							194			(1,736		)	(2,238		)
Other	(114		)						48												251			299
Net income (loss)	52											7,729									84			7,813
Balance, September 30, 2017	$	1,353		$	55		$	—	$	37,529		$	24,979		$	(7,517	)	$	381		$	836		$	56,263

See accompanying notes to condensed consolidated financial statements.

5

Comcast Corporation

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1: Condensed Consolidated Financial Statements

Basis of Presentation

We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

Stock Split

On January 24, 2017, our Board of Directors approved a two-for-one stock split in the form of a 100% stock dividend that was distributed on February 17, 2017 to shareholders of record as of February 8, 2017. The stock split was in the form of one additional share for every share held and was payable in shares of Class A common stock on the existing Class A common stock and Class B common stock. All share-based data, including the number of shares outstanding and per share amounts, have been adjusted to reflect the stock split for all periods presented.

Reclassifications

Reclassifications have been made to our condensed consolidated financial statements for the prior year periods to conform to classifications used in 2017.

Note 2: Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. Upon adoption, we anticipate implementing certain changes in the presentation of revenue and expenses, including changes related to the allocation of revenue among the cable services included in a bundle that our residential customers purchase at a discount. We also expect that the new standard will impact the timing of recognition for (1) our Cable Communications segment’s installation revenue and commission expenses, which will be recognized as revenue and costs over a period of time instead of immediately, and (2) our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. In addition, the updated guidance requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to Comcast Corporation would have decreased for the three and nine months ended September 30, 2017 by $63 million and $47 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

6

Comcast Corporation

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

Share-Based Compensation

In March 2016, the FASB updated the accounting guidance that affects several aspects of the accounting for share-based compensation. The most significant change for us relates to the presentation of the income and withholding tax consequences of share-based compensation in our consolidated financial statements. Among the changes, the updated guidance requires that the excess income tax benefits or deficiencies that arise when the tax consequences of share-based compensation differ from amounts previously recognized in the statement of income be recognized as income tax benefit or expense in the statement of income rather than as additional paid-in capital in the balance sheet. The guidance also states that excess income tax benefits should not be presented separately from other income taxes in the statement of cash flows and, thus, should be classified as an operating activity rather than a financing activity as they were under the prior guidance. In addition, the updated guidance requires that, when an employer withholds shares upon exercise of options or the vesting of restricted stock for the purpose of meeting withholding tax requirements, the cash paid for withholding taxes be classified as a financing activity and we include these amounts in the caption “repurchases of common stock under repurchase program and employee plans” in our consolidated statement of cash flows. We previously recorded these amounts as operating activities.

We adopted the updated guidance as of January 1, 2017 and, as required, we prospectively adopted the provisions that relate to the recognition of the excess income tax benefits or deficiencies in our condensed consolidated statement of income. The excess tax benefits resulted in a decrease to income tax expense of $49 million and $247 million for the three and nine months ended September 30, 2017, respectively. In addition, the excess tax benefits resulted in an increase to diluted earnings per common share attributable to Comcast Corporation shareholders of $0.01 and $0.04 for the three and nine months ended September 30, 2017, respectively. As required by the updated guidance, the prior year periods in our condensed consolidated statement of income were not adjusted as a result of these provisions.

In addition, we retrospectively adopted the provisions of this guidance related to changes to the statement of cash flows for all periods presented. This resulted in increases to net cash provided by operating activities and decreases to net cash provided by (used in) financing activities of $644 million and $492 million for the nine months ended September 30, 2017 and 2016, respectively.

Note 3: Earnings Per Share

Computation of Diluted EPS

	Three Months Ended September 30
	2017					2016
(in millions, except per share data)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	2,650	4,698	$	0.56	$	2,237	4,805	$	0.47
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			79					56
Diluted EPS attributable to Comcast Corporation shareholders	$	2,650	4,777	$	0.55	$	2,237	4,861	$	0.46

7

Comcast Corporation

	Nine Months Ended September 30
	2017					2016
(in millions, except per share amounts)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	7,729	4,725	$	1.64	$	6,399	4,837	$	1.32
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			81					56
Diluted EPS attributable to Comcast Corporation shareholders	$	7,729	4,806	$	1.61	$	6,399	4,893	$	1.31

Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Our potentially dilutive securities include potential common shares related to our stock options and our restricted share units (“RSUs”). The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material for the three and nine months ended September 30, 2017 and 2016.

Note 4: Significant Transactions

FCC Spectrum Auction

On April 13, 2017, the Federal Communications Commission announced the results of its spectrum auction. In the auction, NBCUniversal relinquished its spectrum rights in the New York, Philadelphia and Chicago designated market areas (“DMAs”) where NBC and Telemundo had overlapping spectrum. NBCUniversal received proceeds of $482 million in July 2017, which were recorded in other investing activities in our condensed consolidated statement of cash flows. NBCUniversal recognized a pretax gain of $337 million in other operating gains for the three months ended September 30, 2017 in our condensed consolidated statement of income. NBC and Telemundo stations will share broadcast signals in these DMAs. In connection with the auction, we also acquired the rights to $1.7 billion of spectrum, which were recorded to other intangible assets, net in our condensed consolidated balance sheet. We had previously made a deposit of $1.8 billion to participate in the auction in the third quarter of 2016 and received a refund for amounts in excess of the purchase price in the second quarter of 2017.

Universal Studios Japan

On April 6, 2017, we acquired the remaining interests in Universal Studios Japan that we did not already own for $2.3 billion. The acquisition was funded through cash on hand and borrowings under our commercial paper program. Because we maintained control of Universal Studios Japan, the difference between the consideration transferred and the recorded value of the noncontrolling interests, as well as the related tax and accumulated other comprehensive income impacts, were recorded to additional paid-in capital.

DreamWorks Animation

On August 22, 2016, we acquired all of the outstanding stock of DreamWorks Animation for $3.8 billion. DreamWorks Animation’s stockholders received $41 in cash for each share of DreamWorks Animation common stock. DreamWorks Animation creates animated feature films, television series and specials, live entertainment, and related consumer products. The results of operations for DreamWorks Animation are reported in our Filmed Entertainment segment following the acquisition date.

Allocation of Purchase Price

The transaction was accounted for under the acquisition method of accounting and, accordingly, the assets and liabilities are to be recorded at their fair market values as of the acquisition date. We recorded the acquired assets and liabilities of DreamWorks Animation at their estimated fair values based on valuation analyses. In valuing acquired assets and liabilities, fair value estimates were primarily based on Level 3 inputs, including future expected cash flows, market rate assumptions and discount rates. The fair value of the assumed debt was primarily based on quoted market values. The fair value of the liability related to a tax receivable agreement that DreamWorks Animation had previously entered into with one of its former stockholders (the “tax receivable agreement”) was based on the contractual settlement provisions in the agreement. Further, we recorded deferred income taxes based on the tax basis of the acquired net assets and the valuation allowances based on the expected use of net operating loss carryforwards. The goodwill is not deductible for tax purposes. During the nine months ended September 30, 2017, we updated the allocation of purchase price for DreamWorks Animation based on final valuation analyses, which primarily resulted in increases

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Comcast Corporation

to noncontrolling interests, intangible assets and goodwill and decreases to working capital and deferred income tax assets. The changes did not have a material impact on our condensed consolidated financial statements.

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement	(146		)
Deferred income taxes	291
Other noncurrent assets and liabilities	170
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

The tax receivable agreement was settled immediately following the acquisition and the payment was recorded as an operating activity in our condensed consolidated statement of cash flows in the third quarter of 2016. We also repaid all of the assumed debt of DreamWorks Animation in the third quarter of 2016.

Revenue and net income attributable to the acquisition of DreamWorks Animation were not material for the three and nine monthsended September 30, 2017 and 2016.

Note 5: Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,901		2,586
	8,575		8,502
Less: Current portion of programming rights	1,779		1,250
Film and television costs	$	6,796	$	7,252

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Note 6: Investments

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	164		198
	591		198
Equity Method:
Atairos	2,225		1,601
Hulu	255		225
Other	871		550
	3,351		2,376
Cost Method:
AirTouch	1,610		1,599
BuzzFeed	400		400
Other	756		771
	2,766		2,770
Total investments	6,708		5,344
Less: Current investments	13		97
Noncurrent investments	$	6,695	$	5,247

Investment Income (Loss), Net

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Gains (losses) on sales and exchanges of investments, net	$	10		$	24		$	9		$	39
Investment impairment losses	(3		)	(7		)	(9		)	(28		)
Interest and dividend income	36			31			101			91
Other, net	39			32			104			66
Investment income (loss), net	$	82		$	80		$	205		$	168

Fair Value Method

Snap

In March 2017, we acquired an interest in Snap Inc. for $500 millionas part of its initial public offering, which we have classified as an available-for-sale security.Snap is a camera company whose primary product is Snapchat, a camera app that was created to help people communicate through short videos and images.

Equity Method

Atairos

For the nine months ended September 30, 2017, we made cash capital contributions totaling $994 million to Atairos Group, Inc., which included amounts accrued as of December 31, 2016. Atairos follows investment company accounting and records its investments at their fair values each reporting period with the net gains or losses reflected in its statement of income. We recognize our share of these gains and losses in equity in net income (losses) of investees, net. For the three and nine months ended September 30, 2017, our share of Atairos income was $7 million and $106 million, respectively. For the three and nine months ended September 30, 2016, our share of Atairos losses was $9 million and $36 million, respectively.

In July 2017, we sold a business to a company owned by Atairos and received as consideration an investment in that company, which we account for as an equity method investment. In connection with the sale of the business, we recognized a pretax gain of $105 million in other operating gains for the three months ended September 30, 2017.

The Weather Channel

In January 2016, following a legal restructuring at The Weather Channel, we and the other investors sold the entity holding The Weather Channel’s product and technology businesses to IBM. Following the close of the transaction, we continue to hold an investment in The Weather Channel cable network through a new holding company. As a result of the sale of our investment, we recognized a pretax gain of$108 million in other income (expense), net for the nine months ended September 30, 2016.

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Cost Method

AirTouch

We hold two series of preferred stock of Verizon Americas, Inc., formerly known as AirTouch Communications, Inc. (“AirTouch”), a subsidiary of Verizon Communications Inc., which are redeemable in April 2020. As of September 30, 2017, the estimated fair value of the AirTouch preferred stock was $1.7 billion. The estimated fair value of the associated liability related to the redeemable subsidiary preferred shares issued by one of our consolidated subsidiaries was $1.8 billion. The estimated fair values are based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

Note 7: Long-Term Debt

As of September 30, 2017, our debt had a carrying value of $65.0 billion and an estimated fair value of $71.7 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.

Debt Borrowings and Repayments

In August 2017, we issued $1.65 billion aggregate principal amount of 3.15% senior notes due 2028 and $850 million aggregate principal amount of 4.00% senior notes due 2047. In June 2017, NBCUniversal Enterprise issued $1.5 billion aggregate principal amount of senior floating rate notes due 2021. In March 2017, we issued $1.005 billion aggregate principal amount of 4.45% senior notes due 2047. In January 2017, we issued $1.25 billion aggregate principal amount of 3.00% senior notes due 2024 and $1.25 billion aggregate principal amount of 3.30% senior notes due 2027.

In May 2017, we repaid at maturity $550 million aggregate principal amount of 8.875% senior notes due 2017. In January 2017, we repaid at maturity $1.0 billion aggregate principal amount of 6.50% senior notes due 2017.

In May 2017, Universal Studios Japan entered into ¥450 billion ($3.9 billion at issuance) of new term loans with a final maturity of March 2022. We used the proceeds from these borrowings to repay in full $3.3 billion of Universal Studios Japan’s existing yen-denominated term loans and a portion of amounts outstanding under our commercial paper program.

Revolving Credit Facilities

As of September 30, 2017, amounts available under our consolidated revolving credit facilities, net of amounts outstanding under our commercial paper programs and outstanding letters of credit, totaled $8.3 billion, which included $1.5 billion available under NBCUniversal Enterprise’s revolving credit facility.

Commercial Paper Programs

In June 2017, we increased the Comcast and NBCUniversal Enterprise commercial paper programs to $7.0 billion and $1.5 billion, respectively, to coincide with the borrowing capacities under the Comcast and NBCUniversal Enterprise revolving credit facilities.

As of September 30, 2017, Comcast and NBCUniversal Enterprise had no commercial paper outstanding.

Senior Notes Exchange

In October 2017, we and NBCUniversal announced and settled a private debt exchange transaction. We issued $2.0 billion aggregate principal amount of new 3.969% senior notes due 2047, $2.0 billion aggregate principal amount of new 3.999% senior notes due 2049, and $1.5 billion aggregate principal amount of new 4.049% senior notes due 2052 in exchange for $3.9 billion aggregate principal amount of certain series of outstanding senior notes issued by Comcast and NBCUniversal. The new notes are fully and unconditionally guaranteed by NBCUniversal and Comcast Cable Communications, LLC.

Note 8: Share-Based Compensation

Our share-based compensation plans consist primarily of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Additionally, through our employee stock purchase plans, employees are able to purchase shares of our common stock at a discount through payroll deductions.

In March 2017, we granted 10.6 million RSUs and 39.1 million stock options related to our annual management awards. The weighted-average fair values associated with these grants were $37.42 per RSU and $7.01 per stock option.

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Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	99	$	77	$	284	$	236
Stock options	52		48		155		133
Employee stock purchase plans	8		6		25		22
Total	$	159	$	131	$	464	$	391

As of September 30, 2017, we had unrecognized pretax compensation expense of $886 million and $451 million related to nonvested RSUs and nonvested stock options, respectively.

Note 9: Supplemental Financial Information

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	8,549	$	8,622
Less: Allowance for returns and customer incentives	357		417
Less: Allowance for doubtful accounts	277		250
Receivables, net	$	7,915	$	7,955

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(43	)	$	2
Deferred gains (losses) on cash flow hedges	(12		)	(52		)
Unrecognized gains (losses) on employee benefit obligations	270			8
Cumulative translation adjustments	166			76
Accumulated other comprehensive income (loss), net of deferred taxes	$	381		$	34

Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	7,865		$	6,628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	7,181			7,062
Share-based compensation	594			495
Noncash interest expense (income), net	187			172
Equity in net (income) losses of investees, net	(12		)	64
Cash received from investees	72			58
Net (gain) loss on investment activity and other	(193		)	(159		)
Deferred income taxes	678			985
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	28			(315		)
Film and television costs, net	(71		)	(593		)
Accounts payable and accrued expenses related to trade creditors	(17		)	46
Other operating assets and liabilities	(351		)	(454		)
Net cash provided by operating activities	$	15,961		$	13,989

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Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	905	$	808	$	2,277	$	2,043
Income taxes	$	1,206	$	1,031	$	3,415	$	2,716

Noncash Investing and Financing Activities

During the nine months ended September 30, 2017:

• we acquired $1.4 billion of property and equipment and intangible assets that were accrued but unpaid

• we recorded a liability of $736 million for a quarterly cash dividend of $0.1575 per common share to be paid in October2017

Note 10: Commitments and Contingencies

Redeemable Subsidiary Preferred Stock

As of September 30, 2017, the fair value of the NBCUniversal Enterprise redeemable subsidiary preferred stock was $756 million. The estimated fair value is based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

Contingencies

We were a defendant in a lawsuit filed in December 2011 by Sprint Communications Company L.P. (“Sprint”) in the United States District Court for the District of Kansas. Sprint’s initial complaint alleged that Comcast Digital Voice and XFINITY Voice infringe twelve Sprint patents covering various aspects of a telecommunications system. In March 2015, Sprint withdrew its allegations of infringement for two of the patents. In December 2016, the Court granted summary judgment for us with respect to non-infringement on one of the patents and granted summary judgment for Sprint on one of the patents as to infringement with respect to some but not all of our accused telecommunications systems but not as to the patent’s validity. In January 2017, the Court entered judgment in favor of us on Sprint’s claims for infringement of two of the patents. In March 2017, Sprint indicated that it would not proceed to trial on three of the patents. Trial with respect to the four remaining patents, including the patent for which the Court granted partial summary judgment to Sprint, was set to begin on October 23, 2017. On October 16, 2017, the parties entered into a settlement agreement which dismisses all claims and resolves the parties’ disputes asserted in the matters described above, as well as in all other outstanding patent litigation matters between the parties, for a payment to Sprint and certain contractual rights. In connection therewith, we recorded a charge of $250 million in the third quarter of 2017.

We also are a defendant in several unrelated lawsuits claiming infringement of various patents relating to various aspects of our businesses. In certain of these cases, other industry participants are also defendants, and also in certain of these cases, we expect that any potential liability would be in part or in whole the responsibility of our equipment and technology vendors under applicable contractual indemnification provisions. In addition, we are subject to other legal proceedings and claims that arise in the ordinary course of our business. While the amount of ultimate liability with respect to such actions is not expected to materially affect our results of operations, cash flows or financial position, any litigation resulting from any such legal proceedings or claims could be time-consuming and injure our reputation.

Note 11: Financial Data by Business Segment

We present our operations in five reportable business segments:

• Cable Communications: Consists of the operations of Comcast Cable, which is one of the nation’s largest providers of video, high-speed Internet, voice, and security and automation services to residential customers under the XFINITY brand; we also provide these and other services to business customers and sell advertising.

• Cable Networks:Consists primarily of our national cable networks, our regional sports and news networks, our international cable networks, and our cable television studio production operations.

• Broadcast Television:Consists primarily of the NBC and Telemundo broadcast networks, our NBC and Telemundo owned local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations.

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• Filmed Entertainment:Consists primarily of the operations of Universal Pictures, which produces, acquires, markets and distributes filmed entertainment worldwide; our films are also produced under the Illumination, Focus Features and DreamWorks Animation names.

• Theme Parks:Consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan.

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation below Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.

	Three Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	13,203		$	5,246		$	2,049		$	3,197		$	2,061	$	322
NBCUniversal
Cable Networks	2,603			905			179			726			5		4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(b)	15			(122		)	97			(219		)	66		37
Eliminations(c)	(71		)	1			—			1			—		—
NBCUniversal	8,014			2,274			169			2,105			354		69
Corporate and Other(d)	266			(349		)	170			(519		)	19		13
Eliminations(c)	(500		)	9			—			9			—		—
Comcast Consolidated	$	20,983		$	7,180		$	2,388		$	4,792		$	2,434	$	404

	Three Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	12,557		$	4,986		$	1,929	$	3,057		$	2,044	$	352
NBCUniversal
Cable Networks(e)	2,942			893			184		709			7		4
Broadcast Television(e)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(b)	1			(183		)	91		(274		)	67		34
Eliminations(c)	(84		)	(1		)	—		(1		)	—		—
NBCUniversal	9,178			2,146			445		1,701			336		67
Corporate and Other(d)	168			(223		)	21		(244		)	26		7
Eliminations(c)	(584		)	(74		)	—		(74		)	—		—
Comcast Consolidated	$	21,319		$	6,835		$	2,395	$	4,440		$	2,406	$	426

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	Nine Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	39,237		$	15,764		$	6,030		$	9,734		$	5,798	$	1,001
NBCUniversal
Cable Networks	7,940			3,076			574			2,502			15		11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(b)	32			(542		)	292			(834		)	119		101
Eliminations(c)	(243		)	(1		)	—			(1		)	—		—
NBCUniversal	24,213			6,362			1,197			5,165			977		197
Corporate and Other(d)	679			(845		)	204			(1,049		)	64		42
Eliminations(c)	(1,518		)	30			—			30			—		—
Comcast Consolidated	$	62,611		$	21,311		$	7,431		$	13,880		$	6,839	$	1,240

	Nine Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	37,205		$	14,923		$	5,676	$	9,247		$	5,501	$	965
NBCUniversal
Cable Networks(e)	7,961			2,793			561		2,232			15		8
Broadcast Television(e)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(b)	10			(518		)	268		(786		)	217		103
Eliminations(c)	(256		)	—			—		—			—		—
NBCUniversal	23,142			5,457			1,324		4,133			991		181
Corporate and Other(d)	547			(668		)	62		(730		)	70		17
Eliminations(c)	(1,516		)	(55		)	—		(55		)	—		—
Comcast Consolidated	$	59,378		$	19,657		$	7,062	$	12,595		$	6,562	$	1,163

(a) For the three and nine months ended September 30, 2017 and 2016, Cable Communications segment revenue was derived from the following sources:

	Three Months Ended September 30				Nine Months Ended September 30
	2017		2016		2017		2016
Residential:
Video	44.1	%	44.5	%	44.3	%	44.9	%
High-speed Internet	28.1	%	27.1	%	28.0	%	27.0	%
Voice	6.4	%	7.0	%	6.5	%	7.2	%
Business services	11.9	%	11.1	%	11.7	%	10.9	%
Advertising	4.1	%	5.0	%	4.1	%	4.7	%
Other	5.4	%	5.3	%	5.4	%	5.3	%
Total	100.0	%	100.0	%	100.0	%	100.0	%

Subscription revenue received from residential customers who purchase bundled services at a discounted rate is allocated proportionally to each cable service based on the individual service’s price on a stand-alone basis.

For the three and nine months ended September 30, 2017, 2.7% and 2.8%, respectively, of Cable Communications segment revenue was derived from franchise and other regulatory fees. For both the three and nine months ended September 30, 2016, 2.8% of Cable Communications segment revenue was derived from franchise and other regulatory fees.

(b) NBCUniversal Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(c) Included in Eliminations are transactions that our segments enter into with one another. The most common types of transactions are the following:

• our Cable Networks segment generates revenue by selling programming to our Cable Communications segment, which represents a substantial majority of the revenue elimination amount

• our Broadcast Television segment generates revenue from the fees received under retransmission consent agreements with our Cable Communications segment

• our Cable Communications segment generates revenue by selling advertising and by selling the use of satellite feeds to our Cable Networks segment

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• our Filmed Entertainment and Broadcast Television segments generate revenue from the licensing of film and television content to our Cable Networks segment

(d) Corporate and Other activities include costs associated with overhead and personnel, the costs of other business development initiatives, including our new wireless phone service, and the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses.

(e) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(f) No single customer accounted for a significant amount of revenue in any period.

(g) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to Comcast Corporation before net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of income). This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to Comcast Corporation, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	7,180		$	6,835		$	21,311		$	19,657
Adjustment for legal settlement	(250		)	—			(250		)	—
Depreciation	(1,991		)	(1,865		)	(5,876		)	(5,518		)
Amortization	(589		)	(530		)	(1,747		)	(1,544		)
Other operating gains	442			—			442			—
Other income (expense) items, net	(696		)	(716		)	(1,980		)	(1,978		)
Income before income taxes	$	4,096		$	3,724		$	11,900		$	10,617

(h) Other represents other operating gains in our condensed consolidated statement of income and a charge related to a legal settlement. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to NBCUniversal’s relinquishment of spectrum rights in our Broadcast Television segment and a pretax gain of $105 million related to the sale of a business in Corporate and Other. A charge related to a legal settlement of $250 million was recorded in other operating and administrative expenses in Corporate and Other and was excluded from Adjusted EBITDA for both the three and nine months ended September 30, 2017.

Note 12: Condensed Consolidating Financial Information

Comcast (“Comcast Parent”), Comcast Cable Communications, LLC (“CCCL Parent”), and NBCUniversal (“NBCUniversal Media Parent”) have fully and unconditionally guaranteed each other’s debt securities, including the Comcast revolving credit facility.

Comcast Parent and CCCL Parent also fully and unconditionally guarantee NBCUniversal Enterprise’s $4.8 billion aggregate principal amount of senior notes, $1.5 billion revolving credit facility and commercial paper program. NBCUniversal Media Parent does not guarantee the NBCUniversal Enterprise senior notes, revolving credit facility or commercial paper program.

Comcast Parent provides an unconditional guarantee of the Universal Studios Japan ¥450 billion term loans with a final maturity of March 2022. Comcast Parent also provides an unconditional subordinated guarantee of the $185 million principal amount currently outstanding of Comcast Holdings’ ZONES due October 2029. Neither CCCL Parent nor NBCUniversal Media Parent guarantee the Comcast Holdings’ ZONES due October 2029. None of Comcast Parent, CCCL Parent nor NBCUniversal Media Parent guarantee the $62 million principal amount currently outstanding of Comcast Holdings’ ZONES due November 2029.

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Condensed Consolidating Balance Sheet

September 30, 2017

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	260	$	3,854	$	—		$	4,114
Receivables, net	—		—		—		—		7,915		—			7,915
Programming rights	—		—		—		—		1,779		—			1,779
Other current assets	65		—		—		30		2,057		—			2,152
Total current assets	65		—		—		290		15,605		—			15,960
Film and television costs	—		—		—		—		6,796		—			6,796
Investments	132		11		79		691		5,782		—			6,695
Investments in and amounts due from subsidiaries eliminated upon consolidation	102,930		128,663		126,361		50,474		111,087		(519,515		)	—
Property and equipment, net	482		—		—		—		37,374		—			37,856
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		36,752		—			36,752
Other intangible assets, net	11		—		—		—		18,722		—			18,733
Other noncurrent assets, net	1,178		687		—		86		2,249		(1,055		)	3,145
Total assets	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	17	$	—	$	—	$	—	$	6,959	$	—		$	6,976
Accrued participations and residuals	—		—		—		—		1,811		—			1,811
Accrued expenses and other current liabilities	1,640		92		208		394		5,087		—			7,421
Current portion of long-term debt	2,913		—		—		4		2,324		—			5,241
Total current liabilities	4,570		92		208		398		16,181		—			21,449
Long-term debt, less current portion	42,237		139		2,100		8,204		7,040		—			59,720
Deferred income taxes	—		492		—		70		36,124		(1,084		)	35,602
Other noncurrent liabilities	2,564		—		—		1,138		7,183		29			10,914
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,353		—			1,353
Equity:
Common stock	55		—		—		—		—		—			55
Other shareholders’ equity	55,372		128,638		124,132		41,731		225,014		(519,515		)	55,372
Total Comcast Corporation shareholders’ equity	55,427		128,638		124,132		41,731		225,014		(519,515		)	55,427
Noncontrolling interests	—		—		—		—		836		—			836
Total equity	55,427		128,638		124,132		41,731		225,850		(519,515		)	56,263
Total liabilities and equity	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301

17

Comcast Corporation

Condensed Consolidating Balance Sheet

December 31, 2016

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	482	$	2,819	$	—		$	3,301
Receivables, net	—		—		—		—		7,955		—			7,955
Programming rights	—		—		—		—		1,250		—			1,250
Other current assets	151		—		—		36		3,668		—			3,855
Total current assets	151		—		—		518		15,692		—			16,361
Film and television costs	—		—		—		—		7,252		—			7,252
Investments	75		—		—		651		4,521		—			5,247
Investments in and amounts due from subsidiaries eliminated upon consolidation	98,350		120,071		117,696		47,393		97,704		(481,214		)	—
Property and equipment, net	298		—		—		—		35,955		—			36,253
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		35,980		—			35,980
Other intangible assets, net	13		—		—		—		17,261		—			17,274
Other noncurrent assets, net	1,138		638		—		89		1,921		(1,017		)	2,769
Total assets	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	23	$	—	$	—	$	—	$	6,892	$	—		$	6,915
Accrued participations and residuals	—		—		—		—		1,726		—			1,726
Accrued expenses and other current liabilities	1,726		—		341		302		5,045		—			7,414
Current portion of long-term debt	3,739		—		550		4		1,187		—			5,480
Total current liabilities	5,488		—		891		306		14,850		—			21,535
Long-term debt, less current portion	38,123		141		2,100		8,208		6,994		—			55,566
Deferred income taxes	—		542		—		70		35,259		(1,017		)	34,854
Other noncurrent liabilities	2,471		—		—		1,166		7,288		—			10,925
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,446		—			1,446
Equity:
Common stock	56		—		—		—		—		—			56
Other shareholders’ equity	53,887		120,026		114,705		38,901		207,582		(481,214		)	53,887
Total Comcast Corporation shareholders’ equity	53,943		120,026		114,705		38,901		207,582		(481,214		)	53,943
Noncontrolling interests	—		—		—		—		2,231		—			2,231
Total equity	53,943		120,026		114,705		38,901		209,813		(481,214		)	56,174
Total liabilities and equity	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500

18

Comcast Corporation

Condensed Consolidating Statement of Income

For theThree Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	20,983		$	—		$	20,983
Management fee revenue	285			—			280			—			—			(565		)	—
	285			—			280			—			20,983			(565		)	20,983
Costs and Expenses:
Programming and production	—			—			—			—			6,077			—			6,077
Other operating and administrative	183			—			280			277			6,248			(565		)	6,423
Advertising, marketing and promotion	—			—			—			—			1,553			—			1,553
Depreciation	7			—			—			—			1,984			—			1,991
Amortization	1			—			—			—			588			—			589
Other operating gains	—			—			—			—			(442		)	—			(442		)
	191			—			280			277			16,008			(565		)	16,191
Operating income (loss)	94			—			—			(277		)	4,975			—			4,792
Other Income (Expense):
Interest expense	(544		)	(3		)	(48		)	(116		)	(55		)	—			(766		)
Investment income (loss), net	(2		)	32			—			(9		)	61			—			82
Equity in net income (losses) of investees, net	2,944			2,483			1,992			2,221			1,786			(11,465		)	(39		)
Other income (expense), net	—			—			—			12			15			—			27
	2,398			2,512			1,944			2,108			1,807			(11,465		)	(696		)
Income (loss) before income taxes	2,492			2,512			1,944			1,831			6,782			(11,465		)	4,096
Income tax (expense) benefit	158			(10		)	17			(6		)	(1,572		)	—			(1,413		)
Net income (loss)	2,650			2,502			1,961			1,825			5,210			(11,465		)	2,683
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(33		)	—			(33		)
Net income (loss) attributable to Comcast Corporation	$	2,650		$	2,502		$	1,961		$	1,825		$	5,177		$	(11,465	)	$	2,650
Comprehensive income (loss) attributable to Comcast Corporation	$	2,603		$	2,486		$	1,965		$	1,740		$	5,049		$	(11,240	)	$	2,603

19

Comcast Corporation

Condensed Consolidating Statement of Income

For the Three Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	21,319		$	—		$	21,319
Management fee revenue	268			—			263			—			—			(531		)	—
	268			—			263			—			21,319			(531		)	21,319
Costs and Expenses:
Programming and production	—			—			—			—			7,003			—			7,003
Other operating and administrative	194			—			263			222			5,848			(531		)	5,996
Advertising, marketing and promotion	—			—			—			—			1,485			—			1,485
Depreciation	7			—			—			—			1,858			—			1,865
Amortization	1			—			—			—			529			—			530
Other operating gains	—			—			—			—			—			—			—
	202			—			263			222			16,723			(531		)	16,879
Operating income (loss)	66			—			—			(222		)	4,596			—			4,440
Other Income (Expense):
Interest expense	(502		)	(3		)	(59		)	(113		)	(74		)	—			(751		)
Investment income (loss), net	3			(4		)	—			(12		)	93			—			80
Equity in net income (losses) of investees, net	2,519			2,385			2,134			1,644			1,255			(9,971		)	(34		)
Other income (expense), net	—			—			—			(2		)	(9		)	—			(11		)
	2,020			2,378			2,075			1,517			1,265			(9,971		)	(716		)
Income (loss) before income taxes	2,086			2,378			2,075			1,295			5,861			(9,971		)	3,724
Income tax (expense) benefit	151			2			21			(6		)	(1,568		)	—			(1,400		)
Net income (loss)	2,237			2,380			2,096			1,289			4,293			(9,971		)	2,324
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(87		)	—			(87		)
Net income (loss) attributable to Comcast Corporation	$	2,237		$	2,380		$	2,096		$	1,289		$	4,206		$	(9,971	)	$	2,237
Comprehensive income (loss) attributable to Comcast Corporation	$	2,270		$	2,388		$	2,096		$	1,310		$	4,235		$	(10,029	)	$	2,270

20

Comcast Corporation

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	62,611		$	—		$	62,611
Management fee revenue	841			—			827			—			—			(1,668		)	—
	841			—			827			—			62,611			(1,668		)	62,611
Costs and Expenses:
Programming and production	—			—			—			—			18,492			—			18,492
Other operating and administrative	553			—			827			844			17,754			(1,668		)	18,310
Advertising, marketing and promotion	—			—			—			—			4,748			—			4,748
Depreciation	21			—			—			—			5,855			—			5,876
Amortization	4			—			—			—			1,743			—			1,747
Other operating gains	—			—			—			—			(442		)	—			(442		)
	578			—			827			844			48,150			(1,668		)	48,731
Operating income (loss)	263			—			—			(844		)	14,461			—			13,880
Other Income (Expense):
Interest expense	(1,592		)	(9		)	(159		)	(344		)	(175		)	—			(2,279		)
Investment income (loss), net	(1		)	84			—			(29		)	151			—			205
Equity in net income (losses) of investees, net	8,594			7,746			6,613			5,477			4,313			(32,731		)	12
Other income (expense), net	—			—			—			58			24			—			82
	7,001			7,821			6,454			5,162			4,313			(32,731		)	(1,980		)
Income (loss) before income taxes	7,264			7,821			6,454			4,318			18,774			(32,731		)	11,900
Income tax (expense) benefit	465			(26		)	56			(17		)	(4,513		)	—			(4,035		)
Net income (loss)	7,729			7,795			6,510			4,301			14,261			(32,731		)	7,865
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(136		)	—			(136		)
Net income (loss) attributable to Comcast Corporation	$	7,729		$	7,795		$	6,510		$	4,301		$	14,125		$	(32,731	)	$	7,729
Comprehensive income (loss) attributable to Comcast Corporation	$	7,818		$	7,793		$	6,516		$	4,266		$	13,998		$	(32,573	)	$	7,818

21

Comcast Corporation

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	59,378		$	—		$	59,378
Management fee revenue	793			—			778			—			—			(1,571		)	—
	793			—			778			—			59,378			(1,571		)	59,378
Costs and Expenses:
Programming and production	—			—			—			—			17,926			—			17,926
Other operating and administrative	635			—			778			739			16,704			(1,571		)	17,285
Advertising, marketing and promotion	—			—			—			—			4,510			—			4,510
Depreciation	21			—			—			—			5,497			—			5,518
Amortization	4			—			—			—			1,540			—			1,544
Other operating gains	—			—			—			—			—			—			—
	660			—			778			739			46,177			(1,571		)	46,783
Operating income (loss)	133			—			—			(739		)	13,201			—			12,595
Other Income (Expense):
Interest expense	(1,431		)	(9		)	(179		)	(342		)	(225		)	—			(2,186		)
Investment income (loss), net	6			(3		)	—			(20		)	185			—			168
Equity in net income (losses) of investees, net	7,239			6,924			6,375			4,229			3,160			(27,991		)	(64		)
Other income (expense), net	—			—			—			115			(11		)	—			104
	5,814			6,912			6,196			3,982			3,109			(27,991		)	(1,978		)
Income (loss) before income taxes	5,947			6,912			6,196			3,243			16,310			(27,991		)	10,617
Income tax (expense) benefit	452			4			63			(19		)	(4,489		)	—			(3,989		)
Net income (loss)	6,399			6,916			6,259			3,224			11,821			(27,991		)	6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(229		)	—			(229		)
Net income (loss) attributable to Comcast Corporation	$	6,399		$	6,916		$	6,259		$	3,224		$	11,592		$	(27,991	)	$	6,399
Comprehensive income (loss) attributable to Comcast Corporation	$	6,607		$	7,015		$	6,261		$	3,552		$	12,134		$	(28,962	)	$	6,607

22

Comcast Corporation

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(931	)	$	91		$	(233	)	$	(1,054	)	$	18,088		$	—	$	15,961
Investing Activities
Net transactions with affiliates	4,216			(91		)	818			833			(5,776		)	—		—
Capital expenditures	(6		)	—			—			—			(6,833		)	—		(6,839		)
Cash paid for intangible assets	(2		)	—			—			—			(1,238		)	—		(1,240		)
Acquisitions and construction of real estate properties	(190		)	—			—			—			(135		)	—		(325		)
Acquisitions, net of cash acquired	—			—			—			—			(429		)	—		(429		)
Proceeds from sales of investments	—			—			—			10			110			—		120
Purchases of investments	(56		)	—			(35		)	(57		)	(1,916		)	—		(2,064		)
Deposits	—			—			—			—			—			—		—
Other	101			—			—			49			600			—		750
Net cash provided by (used in) investing activities	4,063			(91		)	783			835			(15,617		)	—		(10,027		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(1,739		)	—			—			—			(1,068		)	—		(2,807		)
Proceeds from borrowings	5,997			—			—			—			5,463			—		11,460
Repurchases and repayments of debt	(1,000		)	—			(550		)	(3		)	(3,468		)	—		(5,021		)
Repurchases of common stock under repurchase program and employee plans	(4,212		)	—			—			—			—			—		(4,212		)
Dividends paid	(2,147		)	—			—			—			—			—		(2,147		)
Purchase of Universal Studios Japan noncontrolling interests	—			—			—			—			(2,299		)	—		(2,299		)
Issuances of common stock	—			—			—			—			—			—		—
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—			—			—			(198		)	—		(198		)
Other	(31		)	—			—			—			134			—		103
Net cash provided by (used in) financing activities	(3,132		)	—			(550		)	(3		)	(1,436		)	—		(5,121		)
Increase (decrease) in cash and cash equivalents	—			—			—			(222		)	1,035			—		813
Cash and cash equivalents, beginning of period	—			—			—			482			2,819			—		3,301
Cash and cash equivalents, end of period	$	—		$	—		$	—		$	260		$	3,854		$	—	$	4,114

23

Comcast Corporation

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings		CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(637	)	$	—	$	(179	)	$	(1,068	)	$	15,873		$	—	$	13,989
Investing Activities
Net transactions with affiliates	(1,746		)	—		179			2,150			(583		)	—		—
Capital expenditures	(9		)	—		—			—			(6,553		)	—		(6,562		)
Cash paid for intangible assets	(4		)	—		—			—			(1,159		)	—		(1,163		)
Acquisitions and construction of real estate properties	(2		)	—		—			—			(301		)	—		(303		)
Acquisitions, net of cash acquired	—			—		—			—			(3,904		)	—		(3,904		)
Proceeds from sales of investments	—			—		—			104			84			—		188
Purchases of investments	(23		)	—		—			(9		)	(586		)	—		(618		)
Deposits	—			—		—			—			(1,748		)	—		(1,748		)
Other	(108		)	—		—			(35		)	101			—		(42		)
Net cash provided by (used in) investing activities	(1,892		)	—		179			2,210			(14,649		)	—		(14,152		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	105			—		—			—			505			—		610
Proceeds from borrowings	9,231			—		—			—			—			—		9,231
Repurchases and repayments of debt	(750		)	—		—			(1,005		)	(1,239		)	—		(2,994		)
Repurchases of common stock under repurchase program and employee plans	(4,061		)	—		—			—			—			—		(4,061		)
Dividends paid	(1,944		)	—		—			—			—			—		(1,944		)
Issuances of common stock	23			—		—			—			—			—		23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—		—			—			(194		)	—		(194		)
Other	(75		)	—		—			25			54			—		4
Net cash provided by (used in) financing activities	2,529			—		—			(980		)	(874		)	—		675
Increase (decrease) in cash and cash equivalents	—			—		—			162			350			—		512
Cash and cash equivalents, beginning of period	—			—		—			414			1,881			—		2,295
Cash and cash equivalents, end of period	$	—		$	—	$	—		$	576		$	2,231		$	—	$	2,807

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ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

We are a global media and technology company with two primary businesses, Comcast Cable and NBCUniversal. We present our operations for Comcast Cable in one reportable business segment, referred to as Cable Communications, and our operations for NBCUniversal in four reportable business segments: Cable Networks, Broadcast Television, Filmed Entertainment and Theme Parks (collectively, the “NBCUniversal segments”).

Cable Communications Segment

Comcast Cable is one of the nation’s largest providers of video, high-speed Internet, voice, and security and automation services (“cable services”) to residential customers under the XFINITY brand; we also provide these and other services to business customers and sell advertising. As of September 30, 2017, our cable systems had 29.1 million total customer relationships, including 27.0 million residential and 2.1 million business customer relationships, and passed more than 57 million homes and businesses. Our Cable Communications segment generates revenue primarily from residential and business customers that subscribe to our cable services, which we market individually and as bundled services, and from the sale of advertising. During the nine months ended September 30, 2017, our Cable Communications segment generated 63% of our consolidated revenue and 70% of the aggregate Adjusted EBITDA for our reportable business segments.

NBCUniversal Segments

NBCUniversal is one of the world’s leading media and entertainment companies that develops, produces and distributes entertainment, news and information, sports, and other content for global audiences, and owns and operates theme parks worldwide.

Cable Networks

Our Cable Networks segment consists primarily of a diversified portfolio of cable television networks. Our cable networks are comprised of our national cable networks that provide a variety of entertainment, news and information, and sports content; our regional sports and news networks; our international cable networks; our cable television studio production operations; and related digital media properties. Our Cable Networks segment generates revenue primarily from the distribution of our cable network programming to traditional and virtual multichannel video providers; from the sale of advertising on our cable networks and related digital media properties; from the licensing of our owned programming, including programming from our cable television studio production operations, to cable and broadcast networks and subscription video on demand services; and from the sale of our owned programming on standard-definition digital video discs and Blu-ray discs (together, “DVDs”) and through digital distribution services such as iTunes.

Broadcast Television

Our Broadcast Television segment consists primarily of the NBC and Telemundo broadcast networks, our NBC and Telemundo owned local broadcast television stations, the NBC Universo national cable network, our broadcast television studio production operations, and related digital media properties. Our Broadcast Television segment generates revenue primarily from the sale of advertising on our broadcast networks, owned local broadcast television stations and related digital media properties; from the licensing of our owned programming by our broadcast television studio production operations to various distribution platforms, including to cable and broadcast networks as well as to subscription video on demand services; from the fees received under retransmission consent agreements and associated fees received from NBC-affiliated local broadcast television stations; and from the sale of our owned programming on DVDs and through digital distribution services.

Filmed Entertainment

Our Filmed Entertainment segment primarily produces, acquires, markets and distributes filmed entertainment worldwide, and it also develops, produces and licenses live stage plays. Our films are produced primarily under the Universal Pictures, Illumination, Focus Features and DreamWorks Animation names. Our Filmed Entertainment segment generates revenue primarily from the worldwide distribution of our produced and acquired films for exhibition in movie theaters, from the licensing of produced and acquired films through various distribution platforms, and from the sale of produced and acquired films on DVDs and through digital distribution services. Our Filmed Entertainment segment also generates revenue from producing and licensing live stage plays, from the distribution of filmed entertainment produced by third parties, and from Fandango, our movie ticketing and entertainment business.

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Theme Parks

Our Theme Parks segment consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan. In addition, along with a consortium of Chinese state-owned companies, we are developing a theme park in China. Our Theme Parks segment generates revenue primarily from ticket sales and guest spending at our Universal theme parks.

Corporate and Other

Our other business interests consist primarily of the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses.

We are also pursuing other business development initiatives, such as our wireless phone service that we launched in the second quarter of 2017 on a small scale to our residential cable customers using our virtual network operator rights to provide the service over Verizon’s wireless network and our existing network of in-home and outdoor Wi-Fi hotspots. We offer the wireless phone service only as part of our bundled service offerings to residential customers subscribing to our high-speed Internet service within our cable distribution footprint and may in the future also offer wireless phone service to our small business customers on similar terms. The wireless phone service has success-based working capital requirements, primarily associated with the procurement of handsets, which customers are able to pay for upfront or finance interest-free over 24 months, and other equipment. 

Competition

The results of operations of our reportable business segments are affected by competition, as all of our businesses operate in intensely competitive, consumer-driven and rapidly changing environments and compete with a growing number of companies that provide a broad range of communications products and services and entertainment, news and information content to consumers.

For additional information on the competition our businesses face, see our 2016 Annual Report on Form 10-K and refer to Item 1: Business and Item 1A: Risk Factors. Within the Business section, refer to the “Competition” discussion, and within the Risk Factors section, refer to the risk factors entitled “Our businesses currently face a wide range of competition, and our businesses and results of operations could be adversely affected if we do not compete effectively” and “Changes in consumer behavior driven by new technologies and distribution platforms for viewing content may adversely affect our businesses and challenge existing business models.”

Seasonality and Cyclicality

Each of our businesses is subject to seasonal and cyclical variations. In our Cable Communications segment, our results are impacted by the seasonal nature of customers receiving our cable services in college and vacation markets. This generally results in a reduction in net customer additions in the second quarter of each year.

Revenue in our Cable Communications, Cable Networks and Broadcast Television segments is subject to cyclical advertising patterns and changes in viewership levels. Advertising revenue in the U.S. is generally higher in the second and fourth quarters of each year, due in part to increases in consumer advertising in the spring and in the period leading up to and including the holiday season. Advertising revenue in the U.S. is also cyclical, with a benefit in even-numbered years due to advertising related to candidates running for political office and issue-oriented advertising. Revenue in our Cable Networks and Broadcast Television segments fluctuates depending on the timing of when our programming is aired, which typically results in higher advertising revenue in the second and fourth quarters of each year. Our revenue and operating costs and expenses are cyclical as a result of our periodic broadcasts of major sporting events, such as the Olympic Games, which affect our Cable Networks and Broadcast Television segments, and the Super Bowl, which affects our Broadcast Television segment. We define our operating costs and expenses as total costs and expenses, excluding depreciation and amortization expense and other operating gains. Our advertising revenue increases in the period of these broadcasts due to increased demand for advertising time, and our operating costs and expenses also increase as a result of our production costs and the amortization of the related rights fees.

Revenue in our Filmed Entertainment segment fluctuates due to the timing of the release of films in movie theaters, on DVDs and through various other distribution platforms. Release dates are determined by several factors, including competition and the timing of vacation and holiday periods. As a result, revenue tends to be seasonal, with increases experienced each year during the summer months and around the holiday season. Revenue in our Cable Networks, Broadcast Television and Filmed Entertainment segments also fluctuates due to the timing of when our content is made available to licensees.

Revenue in our Theme Parks segment fluctuates with changes in theme park attendance that result from the seasonal nature of vacation travel and weather variations, local entertainment offerings and the opening of new attractions, as well as with changes in currency exchange rates. Our theme parks generally experience peak attendance during the spring holiday period, the summer months when schools are closed and the holiday season.

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Consolidated Operating Results

	Three Months Ended September 30						Increase/ (Decrease)		Nine Months Ended September 30						Increase/ (Decrease)
(in millions)	2017			2016					2017			2016
Revenue	$	20,983		$	21,319		(1.6	)%	$	62,611		$	59,378		5.4	%
Costs and Expenses:
Programming and production	6,077			7,003			(13.2	)	18,492			17,926			3.2
Other operating and administrative	6,423			5,996			7.1		18,310			17,285			5.9
Advertising, marketing and promotion	1,553			1,485			4.5		4,748			4,510			5.3
Depreciation	1,991			1,865			6.8		5,876			5,518			6.5
Amortization	589			530			11.0		1,747			1,544			13.1
Other operating gains	(442		)	—			NM		(442		)	—			NM
Operating income	4,792			4,440			7.9		13,880			12,595			10.2
Other income (expense) items, net	(696		)	(716		)	(2.9	)	(1,980		)	(1,978		)	0.1
Income before income taxes	4,096			3,724			10.0		11,900			10,617			12.1
Income tax expense	(1,413		)	(1,400		)	1.0		(4,035		)	(3,989		)	1.2
Net income	2,683			2,324			15.5		7,865			6,628			18.7
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33		)	(87		)	(61.9	)	(136		)	(229		)	(40.7	)
Net income attributable to Comcast Corporation	$	2,650		$	2,237		18.5	%	$	7,729		$	6,399		20.8	%

All percentages are calculated based on actual amounts. Minor differences may exist due to rounding.

Percentage changes that are considered not meaningful are denoted with NM.

Consolidated Revenue

Consolidated revenue decreased for the three months ended September 30, 2017 primarily due to revenue associated with our broadcast of the Rio Olympics in August 2016, which is reflected in our Cable Networks and Broadcast Television segments in the prior year period. The decrease was partially offset by increases in revenue in our Cable Communications and Theme Parks segments. Excluding $1.5 billion of revenue associated with our broadcast of the 2016 Rio Olympics, consolidated revenue increased 5.8% for the three months ended September 30, 2017.

Our Cable Communications, Filmed Entertainment and Theme Parks segments accounted for the increase in consolidated revenue for the nine months ended September 30, 2017, which was partially offset by decreases in our Cable Networks and Broadcast Television segments due to revenue associated with our broadcast of the 2016 Rio Olympics in the prior year period. Excluding $1.5 billion of revenue associated with our broadcast of the 2016 Rio Olympics, consolidated revenue increased 8.2% for the nine months ended September 30, 2017.

Revenue for our segments is discussed separately below under the heading “Segment Operating Results.” Revenue for our other businesses is discussed separately below under the heading “Corporate and Other Results of Operations.”

Consolidated Costs and Expenses

Consolidated operating costs and expenses decreased for the three months ended September 30, 2017 primarily due to expenses associated with our broadcast of the 2016 Rio Olympics, which is reflected in our Cable Networks and Broadcast Television segments in the prior year period. The decrease was partially offset by increases in operating costs and expenses in our Cable Communications segment.

Our Cable Communications, Filmed Entertainment and Theme Parks segments accounted for the increase in consolidated operating costs and expenses for the nine months ended September 30, 2017, which was partially offset by decreases in our Cable Networks and Broadcast Television segments due to expenses associated with our broadcast of the 2016 Rio Olympics in the prior year period.

Operating costs and expenses for our segments are discussed separately below under the heading “Segment Operating Results.” Operating costs and expenses for our corporate and other businesses and initiatives are discussed separately below under the heading “Corporate and Other Results of Operations.”

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Consolidated Depreciation and Amortization Expense

	Three Months Ended September 30				Increase/ (Decrease)		Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016				2017		2016
Cable Communications	$	2,049	$	1,929	6.3	%	$	6,030	$	5,676	6.2	%
NBCUniversal	506		445		13.5		1,534		1,324		15.8
Corporate and Other	25		21		16.7		59		62		(6.7	)
Total	$	2,580	$	2,395	7.7	%	$	7,623	$	7,062	7.9	%

Consolidated depreciation and amortization expense increased for both the three and nine months ended September 30, 2017 primarily due to increases in capital expenditures, as well as expenditures for software, in our Cable Communications segment in recent years and our continued investments in new attractions in our Theme Parks segment. We continue to invest to increase our network capacity and in customer premise equipment, primarily for our X1 platform, cloud DVR technology and wireless gateways. Certain of these assets have shorter estimated useful lives, which is also a contributor to the increase in depreciation expense for both the three and nine months ended September 30, 2017 in our Cable Communications segment.

Consolidated Other Operating Gains

Consolidated other operating gains for both the three and nine months ended September 30, 2017 included $337 million related to NBCUniversal’s relinquishment of spectrum rights (see Note 4 to Comcast’s condensed consolidated financial statements and Note 3 to NBCUniversal's condensed consolidated financial statements) and $105 million related to the sale of a business in Corporate and Other (see Note 6 to Comcast's condensed consolidated financial statements).

Segment Operating Results

Our segment operating results are presented based on how we assess operating performance and internally report financial information. We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to Comcast Corporation before net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees and other income (expense), net, as stated in our condensed consolidated statement of income. This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. We reconcile the aggregate amount of Adjusted EBITDA for our reportable business segments to consolidated income before income taxes in the business segment footnote to our condensed consolidated financial statements (see Note 11 to Comcast’s condensed consolidated financial statements and Note 10 to NBCUniversal’s condensed consolidated financial statements). This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to Comcast Corporation or NBCUniversal, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with generally accepted accounting principles in the United States.

To be consistent with our current management reporting presentation, certain 2016 operating results were reclassified within the Cable Communications segment.

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Cable Communications Segment Results of Operations

	Three Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Residential:
Video	$	5,825	$	5,591	$	234		4.2	%
High-speed Internet	3,709		3,405		304			8.9
Voice	840		878		(38		)	(4.5	)
Business services	1,575		1,399		176			12.6
Advertising	542		625		(83		)	(13.2	)
Other	712		659		53			7.8
Total revenue	13,203		12,557		646			5.1
Operating costs and expenses
Programming	3,264		2,905		359			12.4
Technical and product support	1,633		1,600		33			2.1
Customer service	626		627		(1		)	(0.1	)
Advertising, marketing and promotion	912		934		(22		)	(2.4	)
Franchise and other regulatory fees	379		371		8			2.2
Other	1,143		1,134		9			0.6
Total operating costs and expenses	7,957		7,571		386			5.1
Adjusted EBITDA	$	5,246	$	4,986	$	260		5.2	%

	Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Residential:
Video	$	17,396	$	16,710	$	686		4.1	%
High-speed Internet	10,994		10,049		945			9.4
Voice	2,559		2,667		(108		)	(4.1	)
Business services	4,596		4,070		526			12.9
Advertising	1,628		1,757		(129		)	(7.3	)
Other	2,064		1,952		112			5.7
Total revenue	39,237		37,205		2,032			5.5
Operating costs and expenses
Programming	9,698		8,659		1,039			12.0
Technical and product support	4,778		4,674		104			2.2
Customer service	1,854		1,869		(15		)	(0.8	)
Advertising, marketing and promotion	2,666		2,646		20			0.7
Franchise and other regulatory fees	1,142		1,106		36			3.3
Other	3,335		3,328		7			0.2
Total operating costs and expenses	23,473		22,282		1,191			5.3
Adjusted EBITDA	$	15,764	$	14,923	$	841		5.6	%

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Customer Metrics

	Total Customers		Net Additional Customers
	September 30		Three Months Ended September 30				Nine Months Ended September 30
(in thousands, except per customer amounts)	2017	2016	2017		2016		2017		2016
Video
Video residential customers	21,341	21,420	(134	)	19		(147	)	36
Video business services customers	1,049	1,007	9		13		30		45
Total video customers	22,390	22,428	(125	)	32		(118	)	81
High-Speed Internet
High-speed Internet residential customers	23,546	22,477	182		288		718		868
High-speed Internet business services customers	1,974	1,839	32		41		100		120
Total high-speed Internet customers	25,519	24,316	214		330		818		988
Voice
Voice residential customers	10,351	10,527	(119	)	(24	)	(195	)	90
Voice business services customers	1,214	1,116	25		26		74		77
Total voice customers	11,565	11,643	(94	)	2		(122	)	168
Security and Automation
Security and automation customers	1,079	815	51		78		188		203
Customer Relationships
Residential customer relationships	26,957	26,312	83		175		424		484
Business services customer relationships	2,146	2,006	31		43		102		119
Total customer relationships	29,104	28,318	115		217		527		604
Residential customer relationships mix
Single product customers	8,055	7,722	125		51		299		75
Double product customers	8,983	8,682	38		97		186		203
Triple and quad product customers	9,919	9,908	(79	)	26		(61	)	205

Customer metrics are presented based on actual amounts. Minor differences may exist due to rounding. Beginning in 2017, we include prepaid customers, which are customers who prepay for at least 30 days of service, in our customer metrics. Residential video and high-speed Internet customers as of September 30, 2017 included prepaid customers totaling approximately 2,000 and 42,000, respectively. Customer relationships represent the number of residential and business customers that subscribe to at least one of our cable services. Single product, double product, and triple and quad product customers represent residential customers that subscribe to one, two, or three and four of our cable services, respectively. Beginning in 2017, we include customers subscribing to our security and automation services in customer relationship information. All periods presented have been adjusted for the inclusion of security and automation customers.

Average monthly total revenue per customer relationship for the three and nine months ended September 30, 2017 was $151.51 and $151.16, respectively. Average monthly total revenue per customer relationship for the three and nine months ended September 30, 2016 was $148.38 and $147.55, respectively.

Cable Communications Segment—Revenue

Video

Video revenue increased 4.2% and 4.1% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016. The primary contributors to revenue growth were rate adjustments, revenue received from a boxing event available on pay-per-view and increases in the number of residential customers subscribing to additional services such as advanced services, which are high-definition video and DVR services. These contributors accounted for substantially all of the increases in revenue for the three and nine months ended September 30, 2017. We have experienced, and may experience in the future, declines in the number of residential video customers due to competitive pressures and the impact of rate adjustments. Competition is intense, both from traditional multichannel video providers and from new technologies and distribution platforms for viewing content. We have responded to this competition, and have attempted to mitigate industry-wide declines in residential video customers at traditional multichannel video providers, through our X1 platform and sales and marketing programs, such as promotions, bundled service offerings and service offerings targeted at specific market segments.

High-Speed Internet

High-speed Internet revenue increased 8.9% and 9.4% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016. Increases in the number of residential customers receiving our high-speed Internet services accounted for increases in revenue of 5.0% and 5.2% for the three and nine months ended September 30, 2017, respectively. The remaining increases in revenue were primarily due to increases in the number of customers receiving higher levels of service and

30

the impact of rate adjustments. Our customer base continues to grow as consumers choose our high-speed Internet services and seek higher-speed offerings.

Voice

Voice revenue decreased 4.5% and 4.1% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016. The decreases were primarily due to the allocation of voice revenue for our customers who received bundled services. The amount allocated to voice revenue in the rate charged for bundled services decreased for the three and nine months ended September 30, 2017 because video and high-speed Internet rates increased while voice rates remained relatively flat. The decreases in revenue were also partially due to decreases in the number of residential voice customers, which may continue to decline.

Business Services

Business services revenue increased 12.6% and 12.9% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016. The increases were primarily due to increases in the number of customers receiving our small and medium-sized business services offerings. We believe the increases in the number of business customers are primarily the result of our efforts to gain market share from competitors by offering competitive services and pricing, although the rate of growth in the number of our small business customers may slow as the business matures.

Advertising

Advertising revenue decreased 13.2% and 7.3% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016 primarily due to decreases in political advertising revenue. Excluding political advertising revenue, advertising revenue decreased 4.7% and 2.7% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016.

For both the three and nine months ended September 30, 2017, 4% of our Cable Communications segment advertising revenue was generated from our NBCUniversal segments. For both the three and nine months ended September 30, 2016, 5% of our Cable Communications segment advertising revenue was generated from our NBCUniversal segments. These amounts are eliminated in our condensed consolidated financial statements but are included in the amounts presented above.

Other

Other revenue increased 7.8% and 5.7% for the three and nine months ended September 30, 2017, respectively, compared to the same periods in 2016 primarily due to increases in revenue associated with the licensing of our X1 platform to other multichannel video providers, increases in revenue from our security and automation services, and increases in cable franchise and other regulatory fees.

Cable Communications Segment—Operating Costs and Expenses

Programming expenses increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the timing of contract renewals, other increases in programming license fees, including retransmission consent fees and sports programming costs, and fees associated with a boxing event available on pay-per-view.

Technical and product support expenses increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to expenses related to the development, delivery and support of our X1 platform, cloud DVR technology and wireless gateways, and the continued growth in business services and security and automation services.

Customer service expenses remained relatively flat for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to reduced call volumes, which were partially offset by increased personnel costs.

Advertising, marketing and promotion expenses decreased for the three months ended September 30, 2017 compared to the same period in 2016 primarily due to higher advertising expenses associated with the 2016 Rio Olympics in the prior year period. Advertising, marketing and promotion expenses remained relatively flat for the nine months ended September 30, 2017 compared to the same period in 2016, which reflects increases in spending in the current year period associated with attracting new customers and encouraging existing customers to add additional or higher-tier services offset by higher advertising expenses associated with the 2016 Rio Olympics.

Franchise and other regulatory fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to increases in the revenue to which the fees apply.

Other costs and expenses remained relatively flat for the three and nine months ended September 30, 2017 compared to the same periods in 2016.

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Cable Communications Segment—Operating Margin

Our Cable Communications segment operating margin is Adjusted EBITDA as a percentage of revenue. The most significant operating costs and expenses for our Cable Communications segment are the programming expenses we incur to provide content to our video customers. We expect that our programming expenses will continue to increase, which may negatively impact our operating margin. We will attempt to mitigate increases in operating costs and expenses by growing revenue, particularly in our high-speed Internet, video and business services businesses, and through cost management. Adjusted EBITDA was negatively impacted by two hurricanes that affected our service areas in the third quarter of 2017.

Our operating margin for both the three months ended September 30, 2017 and 2016 was 39.7%. Our operating margin for the nine months ended September 30, 2017 and 2016 was 40.2% and 40.1%, respectively.

NBCUniversal Segments Results of Operations

	Three Months Ended September 30						Increase/ (Decrease)
(in millions)	2017			2016			$			%
Revenue
Cable Networks	$	2,603		$	2,942		$	(339	)	(11.5	)%
Broadcast Television	2,133			3,087			(954		)	(30.9	)
Filmed Entertainment	1,784			1,792			(8		)	(0.5	)
Theme Parks	1,550			1,440			110			7.7
Headquarters, other and eliminations	(56		)	(83		)	27			NM
Total revenue	$	8,014		$	9,178		$	(1,164	)	(12.7	)%
Adjusted EBITDA
Cable Networks	$	905		$	893		$	12		1.5	%
Broadcast Television	321			378			(57		)	(15.0	)
Filmed Entertainment	394			353			41			11.9
Theme Parks	775			706			69			9.8
Headquarters, other and eliminations	(121		)	(184		)	63			NM
Total Adjusted EBITDA	$	2,274		$	2,146		$	128		6.0	%

	Nine Months Ended September 30						Increase/ (Decrease)
(in millions)	2017			2016			$			%
Revenue
Cable Networks	$	7,940		$	7,961		$	(21	)	(0.3	)%
Broadcast Television	6,582			7,299			(717		)	(9.8	)
Filmed Entertainment	5,920			4,526			1,394			30.8
Theme Parks	3,982			3,602			380			10.6
Headquarters, other and eliminations	(211		)	(246		)	35			NM
Total revenue	$	24,213		$	23,142		$	1,071		4.6	%
Adjusted EBITDA
Cable Networks	$	3,076		$	2,793		$	283		10.1	%
Broadcast Television	1,059			1,056			3			0.3
Filmed Entertainment	1,047			576			471			81.9
Theme Parks	1,723			1,550			173			11.2
Headquarters, other and eliminations	(543		)	(518		)	(25		)	NM
Total Adjusted EBITDA	$	6,362		$	5,457		$	905		16.6	%

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Cable Networks Segment Results of Operations

	Three Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Distribution	$	1,533	$	1,772	$	(239	)	(13.4	)%
Advertising	787		943		(156		)	(16.5	)
Content licensing and other	283		227		56			24.0
Total revenue	2,603		2,942		(339		)	(11.5	)
Operating costs and expenses
Programming and production	1,219		1,572		(353		)	(22.5	)
Other operating and administrative	344		344		—			(0.4	)
Advertising, marketing and promotion	135		133		2			2.2
Total operating costs and expenses	1,698		2,049		(351		)	(17.2	)
Adjusted EBITDA	$	905	$	893	$	12		1.5	%

	Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Distribution	$	4,645	$	4,644	$	1		—	%
Advertising	2,519		2,708		(189		)	(7.0	)
Content licensing and other	776		609		167			27.3
Total revenue	7,940		7,961		(21		)	(0.3	)
Operating costs and expenses
Programming and production	3,499		3,824		(325		)	(8.5	)
Other operating and administrative	990		964		26			2.6
Advertising, marketing and promotion	375		380		(5		)	(1.1	)
Total operating costs and expenses	4,864		5,168		(304		)	(5.9	)
Adjusted EBITDA	$	3,076	$	2,793	$	283		10.1	%

Cable Networks Segment—Revenue

Cable Networks revenue decreased for the three months ended September 30, 2017 compared to the same period in 2016 due to decreases in distribution revenue and advertising revenue, which were partially offset by an increase in content licensing and other revenue. The decrease in distribution revenue was primarily due to our broadcast of the 2016 Rio Olympics and a decline in the number of subscribers at our cable networks in the current year period, which were partially offset by increases in the contractual rates charged under distribution agreements and the timing of contract renewals in the current year period. The decrease in advertising revenue was primarily due to advertising revenue in the prior year period associated with our broadcast of the 2016 Rio Olympics and the impact of continued declines in audience ratings at our networks in the current year period, which was partially offset by higher prices for advertising units sold. The increase in content licensing and other revenue was primarily due to the timing of content provided under our licensing agreements. Excluding $432 million of revenue associated with our broadcast of the 2016 Rio Olympics, Cable Networks segment revenue increased 3.7% for the three months ended September 30, 2017.

Cable Networks revenue decreased slightly for the nine months ended September 30, 2017 compared to the same period in 2016 due to a decrease in advertising revenue, which was partially offset by an increase in content licensing and other revenue. The decrease in advertising revenue was primarily due to advertising revenue in the prior year period associated with our broadcast of the 2016 Rio Olympics and the impact of continued declines in audience ratings at our networks in the current year period, which was partially offset by higher prices for advertising units sold. The increase in content licensing and other revenue was primarily due to the timing of content provided under our licensing agreements. Distribution revenue remained flat primarily due to increases in the contractual rates charged under distribution agreements and the timing of contract renewals in the current year period, which were offset by our broadcast of the 2016 Rio Olympics and a decline in the number of subscribers at our cable networks. Excluding $432 million of revenue associated with our broadcast of the 2016 Rio Olympics, Cable Networks segment revenue increased 5.5% for the nine months ended September 30, 2017.

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For both the three and nine months ended September 30, 2017, 15% of our Cable Networks segment revenue was generated from our Cable Communications segment. For both the three and nine months ended September 30, 2016, 14% of our Cable Networks segment revenue was generated from our Cable Communications segment. These amounts are eliminated in our condensed consolidated financial statements but are included in the amounts presented above.

Cable Networks Segment—Operating Costs and Expenses

Operating costs and expenses decreased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to programming and production costs in the prior year periods associated with the 2016 Rio Olympics. The decreases in programming and production costs were partially offset by increases in sports programming rights costs and higher studio production costs in the current year periods.

Broadcast Television Segment Results of Operations

	Three Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Advertising	$	1,241	$	2,281	$	(1,040	)	(45.6	)%
Content licensing	440		365		75			20.5
Distribution and other	452		441		11			2.3
Total revenue	2,133		3,087		(954		)	(30.9	)
Operating costs and expenses
Programming and production	1,342		2,205		(863		)	(39.1	)
Other operating and administrative	337		371		(34		)	(9.4	)
Advertising, marketing and promotion	133		133		—			—
Total operating costs and expenses	1,812		2,709		(897		)	(33.1	)
Adjusted EBITDA	$	321	$	378	$	(57	)	(15.0	)%

	Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Advertising	$	3,790	$	4,841	$	(1,051	)	(21.7	)%
Content licensing	1,466		1,367		99			7.2
Distribution and other	1,326		1,091		235			21.6
Total revenue	6,582		7,299		(717		)	(9.8	)
Operating costs and expenses
Programming and production	4,126		4,872		(746		)	(15.3	)
Other operating and administrative	1,022		1,024		(2		)	(0.1	)
Advertising, marketing and promotion	375		347		28			7.9
Total operating costs and expenses	5,523		6,243		(720		)	(11.5	)
Adjusted EBITDA	$	1,059	$	1,056	$	3		0.3	%

Broadcast Television Segment—Revenue

Broadcast Television revenue decreased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 due to decreases in advertising revenue, which were partially offset by increases in content licensing revenue and distribution and other revenue. The decreases in advertising revenue were primarily due to advertising revenue in the prior year periods associated with our broadcast of the 2016 Rio Olympics and declines in audience ratings in the current year periods, which were partially offset by higher prices for advertising units sold. The increases in content licensing revenue were primarily due to the timing of content provided under our licensing agreements. The increases in distribution and other revenue were primarily due to increases in fees recognized under our retransmission consent agreements, which were partially offset by revenue associated with our broadcast of the 2016 Rio Olympics in the prior year periods. Excluding $1.2 billion of revenue associated with our broadcast of the 2016 Rio Olympics, revenue increased 12.3% and 7.7% for the three and nine months ended September 30, 2017, respectively.

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Broadcast Television Segment—Operating Costs and Expenses

Operating costs and expenses decreased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to decreases in programming and production costs. The decreases in programming and production costs were primarily due to costs associated with our broadcast of the 2016 Rio Olympics, which were partially offset by higher studio production costs and our continued investment in original programming and sports programming rights in the current year periods.

Filmed Entertainment Segment Results of Operations

	Three Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$			%
Revenue
Theatrical	$	515	$	700	$	(185	)	(26.4	)%
Content licensing	683		595		88			14.9
Home entertainment	306		267		39			14.4
Other	280		230		50			21.0
Total revenue	1,784		1,792		(8		)	(0.5	)
Operating costs and expenses
Programming and production	789		800		(11		)	(1.5	)
Other operating and administrative	286		314		(28		)	(9.4	)
Advertising, marketing and promotion	315		325		(10		)	(3.1	)
Total operating costs and expenses	1,390		1,439		(49		)	(3.6	)
Adjusted EBITDA	$	394	$	353	$	41		11.9	%

	Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$		%
Revenue
Theatrical	$	2,003	$	1,233	$	770	62.4	%
Content licensing	2,097		1,845		252		13.7
Home entertainment	949		783		166		21.1
Other	871		665		206		31.1
Total revenue	5,920		4,526		1,394		30.8
Operating costs and expenses
Programming and production	2,752		2,050		702		34.2
Other operating and administrative	948		750		198		26.4
Advertising, marketing and promotion	1,173		1,150		23		2.0
Total operating costs and expenses	4,873		3,950		923		23.3
Adjusted EBITDA	$	1,047	$	576	$	471	81.9	%

Filmed Entertainment Segment—Revenue

Filmed Entertainment revenue decreased for the three months ended September 30, 2017 compared to the same period in 2016 due to a decrease in theatrical revenue, which was partially offset by increases in content licensing revenue, other revenue and home entertainment revenue. The decrease in theatrical revenue was primarily due to a higher number of releases in the prior year period, including The Secret Life of Pets and Jason Bourne, which was partially offset by the strong performance of Despicable Me 3 in the current year period. The increase in content licensing revenue was primarily due to the timing of when content was made available under licensing agreements. The increase in other revenue was primarily due to an increase in revenue from consumer products. The increase in home entertainment revenue was primarily due to strong sales of our 2017 film slate, including The Fate of the Furious.

Filmed Entertainment revenue increased for the nine months ended September 30, 2017 compared to the same period in 2016 due to increases in theatrical revenue, content licensing revenue, other revenue and home entertainment revenue. Theatrical revenue

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increased due to the strong performances of several releases in our 2017 film slate, including The Fate of the Furious, Despicable Me 3 and Fifty Shades Darker. Content licensing revenue increased primarily due to the inclusion of DreamWorks Animation in the current year period. Other revenue increased primarily due to increases in revenue from consumer products, including from DreamWorks Animation, in the current year period. Home entertainment revenue increased primarily due to strong sales of several 2017 releases, including Sing, The Fate of the Furious and Fifty Shades Darker.

Filmed Entertainment Segment—Operating Costs and Expenses

Operating costs and expenses decreased for the three months ended September 30, 2017 compared to the same period in 2016 due to decreases in other operating and administrative expenses, programming and production costs, and advertising, marketing and promotion costs. The decrease in other operating and administrative expenses was due to $50 million related to severance costs attributable to DreamWorks in the prior year period. The decreases in programming and production costs and advertising, marketing and promotion costs were primarily due to a higher number of releases in the prior year period.

Operating costs and expenses increased for the nine months ended September 30, 2017 compared to the same period in 2016 primarily due to an increase in programming and production costs and other operating and administrative expenses. The increase in programming and production costs was primarily due to higher amortization of film production costs for our 2017 releases, as well as the inclusion of costs associated with DreamWorks Animation. The increase in other operating and administrative expenses was primarily due to an increase in employee-related costs as well as the inclusion of expenses associated with DreamWorks Animation.

Theme Parks Segment Results of Operations

	Three Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$		%
Revenue	$	1,550	$	1,440	$	110	7.7	%
Operating costs and expenses	775		734		41		5.6
Adjusted EBITDA	$	775	$	706	$	69	9.8	%

	Nine Months Ended September 30				Increase/ (Decrease)
(in millions)	2017		2016		$		%
Revenue	$	3,982	$	3,602	$	380	10.6	%
Operating costs and expenses	2,259		2,052		207		10.1
Adjusted EBITDA	$	1,723	$	1,550	$	173	11.2	%

Theme Parks Segment—Revenue

Theme Parks revenue increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to increases in guest spending that reflect the continued success of The Wizarding World of Harry Potter™ attraction in Hollywood, which opened in April 2016, and the openings of Minion Park™ in Japan in April 2017 and Volcano Bay™ in Orlando in May 2017.

Theme Parks Segment—Operating Costs and Expenses

Operating costs and expenses increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to higher operating costs related to new attractions, employee-related costs and additional marketing costs associated with our domestic theme parks.

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Corporate and Other Results of Operations

	Three Months Ended September 30						Increase/ (Decrease)
(in millions)	2017			2016			$			%
Revenue	$	266		$	168		$	98		58.2	%
Operating costs and expenses	865			391			474			NM
Adjustment for legal settlement	(250		)	—			(250		)	NM
Adjusted EBITDA	$	(349	)	$	(223	)	$	(126	)	(56.7	)%
	Nine Months Ended September 30						Increase/ (Decrease)
(in millions)	2017			2016			$			%
Revenue	$	679		$	547		$	132		24.1	%
Operating costs and expenses	1,774			1,215			559			46.1
Adjustment for legal settlement	(250		)	—			(250		)	NM
Adjusted EBITDA	$	(845	)	$	(668	)	$	(177	)	(26.6	)%

Corporate and Other—Revenue

Other revenue primarily relates to Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses, as well as revenue from other business development initiatives, such as our wireless phone service.

Corporate and Other—Operating Costs and Expenses

Corporate and Other operating costs and expenses primarily include overhead, personnel costs, the costs of other business development initiatives, and operating costs and expenses associated with Comcast Spectacor.

Corporate and Other operating costs and expenses increased for the three and nine months ended September 30, 2017 primarily due to expenses associated with our new wireless phone service. Corporate and Other Adjusted EBITDA excludes $250 million of expense related to a legal settlement for the three and nine months ended September 30, 2017 (see Note 10 to Comcast's condensed consolidated financial statements).

Consolidated Other Income (Expense) Items, Net

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Interest expense	$	(766	)	$	(751	)	$	(2,279	)	$	(2,186	)
Investment income (loss), net	82			80			205			168
Equity in net income (losses) of investees, net	(39		)	(34		)	12			(64		)
Other income (expense), net	27			(11		)	82			104
Total	$	(696	)	$	(716	)	$	(1,980	)	$	(1,978	)

Interest Expense

Interest expense increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to increases in our debt outstanding.

Investment Income (Loss), Net

The components of investment income (loss), net for the three and nine months ended September 30, 2017 and 2016 are presented in a table in Note 6 to Comcast’s condensed consolidated financial statements.

Equity in Net Income (Losses) of Investees, Net

The changes in equity in net income (losses) of investees, net for the three and nine months ended September 30, 2017 compared to the same periods in 2016 were primarily related to our equity method investments in Atairos Group, Inc. and Hulu, LLC. Atairos follows investment company accounting and records its investments at their fair values each reporting period with the net gains or losses reflected in its statement of income. We recognize our share of these gains and losses in equity in net income (losses) of

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investees, net. The losses at Hulu were primarily due to its higher programming and marketing costs. The equity in net income (losses) of Atairos and Hulu for the three and nine months ended September 30, 2017 and 2016 are presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Atairos	$	7		$	(9	)	$	106		$	(36	)
Hulu	$	(62	)	$	(43	)	$	(168	)	$	(108	)

Other Income (Expense), Net

Other income (expense), net for the nine months ended September 30, 2016 included a gain of $108 million related to the sale of our investment in The Weather Channel’s product and technology businesses.

Consolidated Income Tax Expense

Income tax expense for the three and nine months ended September 30, 2017 and 2016 reflects an effective income tax rate that differs from the federal statutory rate primarily due to state income taxes and adjustments associated with uncertain tax positions. In 2017, we prospectively adopted the new accounting guidance related to share-based compensation, which resulted in decreases in income tax expense of $49 million and $247 million for the three and nine months ended September 30, 2017, respectively (see Note 2 to Comcast's condensed consolidated financial statements). In addition, our income tax expense decreased $121 million due to the impact of an internal legal reorganization, which was partially offset by an increase of $53 million due to state tax law changes for both the three and nine months ended September 30, 2017. Including the impacts of these items, we expect our 2017 annual effective tax rate to be in the range of 34% to 36%, absent further changes in tax laws or significant changes in uncertain tax positions.

Liquidity and Capital Resources

Our businesses generate significant cash flows from operating activities. We believe that we will be able to continue to meet our current and long-term liquidity and capital requirements, including fixed charges, through our cash flows from operating activities; existing cash, cash equivalents and investments; available borrowings under our existing credit facilities; and our ability to obtain future external financing. We anticipate that we will continue to use a substantial portion of our cash flows in repaying our debt obligations, funding our capital expenditures, investing in business opportunities and returning capital to shareholders.

Operating Activities

Components of Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Operating income	$	13,880		$	12,595
Depreciation, amortization and other operating gains	7,181			7,062
Noncash share-based compensation	594			495
Changes in operating assets and liabilities	(168		)	(1,575		)
Payments of interest	(2,277		)	(2,043		)
Payments of income taxes	(3,415		)	(2,716		)
Other	166			171
Net cash provided by operating activities	$	15,961		$	13,989

The variance in changes in operating assets and liabilities for the nine months ended September 30, 2017 compared to the same period in 2016 was primarily due to the timing of collections on our receivables and recognition of deferred revenue associated with our broadcast of the 2016 Rio Olympics and the payment of a tax receivable agreement that DreamWorks previously entered into with one of its former stockholders in the prior year period. The variance was also due to the timing of film and television spending, including certain sports programming obligations, and an increase related to a legal settlement in the current year period.

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Investing Activities

Net cash used in investing activities for the nine months ended September 30, 2017 consisted primarily of capital expenditures, purchases of investments, cash paid for intangible assets and acquisitions. Capital expenditures increased for the nine months ended September 30, 2017 compared to the same period in 2016 primarily due to our Cable Communications segment's continued investment in scalable infrastructure to increase network capacity and increased investment in line extensions primarily for the expansion of business services, partially offset by a decrease in spending on customer premise equipment. NBCUniversal capital expenditures decreased for the nine months ended September 30, 2017 compared to the same period in 2016 primarily due to the timing of real estate and infrastructure spending. Purchases of investments for the nine months ended September 30, 2017 consisted primarily of our cash capital contributions to Atairos of $994 million and our investment in Snap Inc. of $500 million.

On April 13, 2017, the Federal Communications Commission announced the results of its spectrum auction. In the auction, NBCUniversal relinquished its spectrum rights in the New York, Philadelphia and Chicago designated market areas where NBC and Telemundo had overlapping spectrum. NBCUniversal received proceeds of $482 million in July 2017, which were recorded in other investing activities in our condensed consolidated statement of cash flows. In connection with the auction, we also acquired the rights to $1.7 billion of spectrum. We had previously made a deposit of $1.8 billion to participate in the auction in the third quarter of 2016 and received a refund for amounts in excess of the purchase price in the second quarter of 2017.

Financing Activities

Net cash used in financing activities for the nine months ended September 30, 2017 consisted primarily of repayments of debt, repurchases of common stock under our share repurchase program and employee plans, the purchase of the remaining 49% noncontrolling interests in Universal Studios Japan, and dividend payments, which were partially offset by proceeds from borrowings.

We have made, and may from time to time in the future make, optional repayments on our debt obligations, which may include repurchases or exchanges of our outstanding public notes and debentures, depending on various factors, such as market conditions. See Note 7 to Comcast’s condensed consolidated financial statements for additional information on our financing activities, including details of our debt repayments and borrowings and our exchange of senior notes.

Available Borrowings Under Credit Facilities

We also maintain significant availability under our lines of credit and commercial paper programs to meet our short-term liquidity requirements.

As of September 30, 2017, amounts available under our consolidated revolving credit facilities, net of amounts outstanding under our commercial paper programs and outstanding letters of credit, totaled $8.3 billion, which included $1.5 billion available under the NBCUniversal Enterprise revolving credit facility.

Share Repurchases and Dividends

Effective January 1, 2017, our Board of Directors increased our share repurchase program authorization to $12 billion, which does not have an expiration date. Under the authorization, we may repurchase shares in the open market or in private transactions. During the nine months ended September 30, 2017, we repurchased a total of 98 million shares of our Class A common stock for $3.8 billion. We expect to make $1.2 billion more in repurchases under this authorization during the remainder of2017, although the actual repurchase amount may be more or less.

In addition, we paid $397 million for the nine months ended September 30, 2017 related to employee taxes associated with the administration of our share-based compensation plans.

In January 2017, our Board of Directors approved a 15% increase in our dividend to $0.63 per share on an annualized basis. In July 2017, our Board of Directors approved our third quarter dividend of $0.1575 per share to be paid in October 2017. We expect to continue to pay quarterly dividends, although each dividend is subject to approval by our Board of Directors.

Critical Accounting Judgments and Estimates

The preparation of our condensed consolidated financial statements requires us to make estimates that affect the reported amounts of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. We base our judgments on our historical experience and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making estimates about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

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We believe our judgments and related estimates associated with the valuation and impairment testing of our cable franchise rights and accounting for film and television costs are critical in the preparation of our condensed consolidated financial statements. We performed our annual impairment testing of our cable franchise rights as of July 1, 2017 and no impairment charge was required.

For a more complete discussion of the accounting judgments and estimates that we have identified as critical in the preparation of our condensed consolidated financial statements, please refer to our Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2016 Annual Report on Form 10-K.

Recent Accounting Pronouncements

See Note 2 to each of Comcast’s and NBCUniversal’s condensed consolidated financial statements for additional information related to recent accounting pronouncements.

ITEM 3: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We have evaluated the information required under this item that was disclosed in our 2016 Annual Report on Form 10-K and there have been no significant changes to this information.

ITEM 4: CONTROLS AND PROCEDURES

Comcast Corporation

Conclusions regarding disclosure controls and procedures

Our principal executive and principal financial officers, after evaluating the effectiveness of Comcast’s disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of the end of the period covered by this report, have concluded that, based on the evaluation of these controls and procedures required by paragraph (b) of Exchange Act Rules 13a-15 or 15d-15, Comcast’s disclosure controls and procedures were effective.

Changes in internal control over financial reporting

There were no changes in Comcast’s internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that occurred during Comcast’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, Comcast’s internal control over financial reporting.

NBCUniversal Media, LLC

Conclusions regarding disclosure controls and procedures

Our principal executive and principal financial officers, after evaluating the effectiveness of NBCUniversal’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) as of the end of the period covered by this report, have concluded that, based on the evaluation of these controls and procedures required by paragraph (b) of Exchange Act Rules 13a-15 or 15d-15, NBCUniversal’s disclosure controls and procedures were effective.

Changes in internal control over financial reporting

There were no changes in NBCUniversal’s internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that occurred during NBCUniversal’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, NBCUniversal’s internal control over financial reporting.

PART II: OTHER INFORMATION

ITEM 1: LEGAL PROCEEDINGS

Refer to Note 10 to Comcast’s condensed consolidated financial statements included in this Quarterly Report on Form 10-Q for a discussion of legal proceedings.

NBCUniversal is subject to legal proceedings and claims that arise in the ordinary course of its business and does not expect the final disposition of these matters to have a material adverse effect on its results of operations, cash flows or financial condition, although any such matters could be time-consuming and costly and could injure its reputation.

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ITEM 1A: RISK FACTORS

There have been no significant changes from the risk factors previously disclosed in Item 1A of our 2016 Annual Report on Form 10-K.

ITEM 2: UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The table below summarizes Comcast’s common stock repurchases during the three months ended September 30, 2017.

Purchases of Equity Securities

Period	Total Number of Shares Purchased	Average Price Per Share		Total Number of Shares Purchased as Part of Publicly Announced Authorization	Total Dollar Amount Purchased Under the Publicly Announced Authorization		Maximum Dollar Value of Shares That May Yet Be Purchased Under the Publicly Announced Authorization(a)
July 1-31, 2017	—	$	—	—	$	—	$	9,868,909,599
August 1-31, 2017	18,907,754	$	39.34	18,907,754	$	743,909,599	$	9,125,000,000
September 1-30, 2017	23,975,477	$	39.21	23,975,477	$	939,986,531	$	8,185,013,469
Total	42,883,231	$	39.27	42,883,231	$	1,683,896,130	$	8,185,013,469

(a) Effective January 1, 2017, our Board of Directors increased our share repurchase program authorization to $12 billion, which does not have an expiration date. Under this authorization, we may repurchase shares in the open market or in private transactions.

The total number of shares purchased during the three months ended September 30, 2017 does not include any shares received in the administration of employee share-based compensation plans.

ITEM 5: OTHER INFORMATION

Iran Threat Reduction and Syria Human Rights Act Disclosure

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012, companies are required, among other things, to disclose certain activities, transactions or dealings with the Government of Iran or entities controlled directly or indirectly by the Government of Iran. Disclosure is generally required even where the activities, transactions or dealings are conducted in compliance with applicable laws and regulations and are de minimis. As of the date of this report, we are not aware of any activity, transaction or dealing during the three months ended September 30, 2017 that requires disclosure under the Act, except with respect to a January 2016 licensing agreement by a non-U.S. subsidiary of DreamWorks Animation prior to our August 2016 DreamWorks Animation acquisition. The agreement licensed a prior season of a children’s animated television series for a three-year, non-cancelable term and for a one-time fee of $5,200 to a broadcasting company that is owned and controlled by the Government of Iran. The broadcasting company paid the license fee in the first quarter of 2016. We believe that DreamWorks Animation conducted its licensing activity in compliance with applicable laws and that the license is for the permissible exportation of informational materials pursuant to certain statutory and regulatory exemptions from U.S. sanctions.

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ITEM 6: EXHIBITS

Comcast

Exhibit No.	Description
10.1*	Employment Agreement between Comcast Corporation and Brian L. Roberts, dated as of July 26, 2017 (incorporated by reference to Exhibit 10.2 to Comcast's Quarterly Report on Form 10-Q for the quarter ended June 30, 2017).
31.1	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following financial statements from Comcast Corporation’s Quarterly Report on Form 10-Q for the three and nine months ended September 30, 2017, filed with the Securities and Exchange Commission on October 26, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheet; (ii) the Condensed Consolidated Statement of Income; (iii) the Condensed Consolidated Statement of Comprehensive Income; (iv) the Condensed Consolidated Statement of Cash Flows; (v) the Condensed Consolidated Statement of Changes in Equity; and (vi) the Notes to Condensed Consolidated Financial Statements.
* Constitutes a management contract or compensatory plan or arrangement.

NBCUniversal

Exhibit No.	Description
31.2	Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following financial statements from NBCUniversal Media, LLC’s Quarterly Report on Form 10-Q for the three and nine months ended September 30, 2017, filed with the Securities and Exchange Commission on October 26, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheet; (ii) the Condensed Consolidated Statement of Income; (iii) the Condensed Consolidated Statement of Comprehensive Income; (iv) the Condensed Consolidated Statement of Cash Flows; (v) the Condensed Consolidated Statement of Changes in Equity; and (vi) the Notes to Condensed Consolidated Financial Statements.

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SIGNATURES

Comcast

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	COMCAST CORPORATION
By:	/s/ DANIEL C. MURDOCK
	Daniel C. Murdock Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

Date: October 26, 2017

NBCUniversal

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	NBCUNIVERSAL MEDIA, LLC
By:	/s/ DANIEL C. MURDOCK
	Daniel C. Murdock Senior Vice President (Principal Accounting Officer)

Date: October 26, 2017

43

NBCUniversal Media, LLC Financial Statements

Index	Page
Condensed Consolidated Balance Sheet	45
Condensed Consolidated Statement of Income	46
Condensed Consolidated Statement of Comprehensive Income	47
Condensed Consolidated Statement of Cash Flows	48
Condensed Consolidated Statement of Changes in Equity	49
Notes to Condensed Consolidated Financial Statements	50

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NBCUniversal Media, LLC

Condensed Consolidated Balance Sheet

(Unaudited)

(in millions)	September 30, 2017			December 31, 2016
Assets
Current Assets:
Cash and cash equivalents	$	2,014		$	1,966
Receivables, net	6,177			6,302
Programming rights	1,772			1,241
Other current assets	1,114			938
Total current assets	11,077			10,447
Film and television costs	6,791			7,245
Investments	1,817			1,263
Property and equipment, net of accumulated depreciation of $3,999 and $3,350	11,040			10,511
Goodwill	23,963			23,323
Intangible assets, net of accumulated amortization of $7,372 and $6,568	13,375			13,777
Other noncurrent assets, net	1,582			1,688
Total assets	$	69,645		$	68,254
Liabilities and Equity
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	$	1,449		$	1,647
Accrued participations and residuals	1,811			1,726
Program obligations	576			807
Deferred revenue	1,479			1,016
Accrued expenses and other current liabilities	1,807			1,888
Note payable to Comcast	1,805			2,703
Current portion of long-term debt	196			127
Total current liabilities	9,123			9,914
Long-term debt, less current portion	12,157			11,461
Accrued participations, residuals and program obligations	1,202			1,202
Other noncurrent liabilities	4,099			4,130
Commitments and contingencies
Redeemable noncontrolling interests	407			530
Equity:
Member’s capital	41,760			39,036
Accumulated other comprehensive income (loss)	(29		)	(135		)
Total NBCUniversal member’s equity	41,731			38,901
Noncontrolling interests	926			2,116
Total equity	42,657			41,017
Total liabilities and equity	$	69,645		$	68,254

See accompanying notes to condensed consolidated financial statements.

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NBCUniversal Media, LLC

Condensed Consolidated Statement of Income

(Unaudited)

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Revenue	$	8,014		$	9,178		$	24,213		$	23,142
Costs and Expenses:
Programming and production	3,257			4,501			10,157			10,503
Other operating and administrative	1,859			1,912			5,586			5,159
Advertising, marketing and promotion	624			619			2,108			2,023
Depreciation	253			209			749			624
Amortization	253			236			785			700
Other operating gains	(337		)	—			(337		)	—
	5,909			7,477			19,048			19,009
Operating income	2,105			1,701			5,165			4,133
Other Income (Expense):
Interest expense	(139		)	(151		)	(431		)	(444		)
Investment income (loss), net	10			6			34			20
Equity in net income (losses) of investees, net	(52		)	(34		)	(107		)	(55		)
Other income (expense), net	16			(16		)	31			81
	(165		)	(195		)	(473		)	(398		)
Income before income taxes	1,940			1,506			4,692			3,735
Income tax expense	(98		)	(139		)	(289		)	(311		)
Net income	1,842			1,367			4,403			3,424
Net (income) loss attributable to noncontrolling interests	(17		)	(78		)	(102		)	(200		)
Net income attributable to NBCUniversal	$	1,825		$	1,289		$	4,301		$	3,224

See accompanying notes to condensed consolidated financial statements.

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NBCUniversal Media, LLC

Condensed Consolidated Statement of Comprehensive Income

(Unaudited)

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Net income	$	1,842		$	1,367		$	4,403		$	3,424
Unrealized gains (losses) on marketable securities, net	(94		)	—			(233		)	—
Deferred gains (losses) on cash flow hedges, net	(5		)	5			(27		)	(7		)
Employee benefit obligations, net	(3		)	—			101			4
Currency translation adjustments, net	22			50			211			652
Comprehensive income	1,762			1,422			4,455			4,073
Net (income) loss attributable to noncontrolling interests	(17		)	(78		)	(102		)	(200		)
Other comprehensive (income) loss attributable to noncontrolling interests	(5		)	(34		)	(87		)	(321		)
Comprehensive income attributable to NBCUniversal	$	1,740		$	1,310		$	4,266		$	3,552

See accompanying notes to condensed consolidated financial statements.

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NBCUniversal Media, LLC

Condensed Consolidated Statement of Cash Flows

(Unaudited)

	Nine Months Ended September 30
(in millions)	2017			2016
Net cash provided by operating activities	$	5,572		$	3,339
Investing Activities
Capital expenditures	(977		)	(991		)
Cash paid for intangible assets	(197		)	(181		)
Acquisitions of real estate properties	—			(78		)
Proceeds from sales of investments	42			104
Purchases of investments	(368		)	(74		)
Other	474			(236		)
Net cash provided by (used in) investing activities	(1,026		)	(1,456		)
Financing Activities
Proceeds from borrowings	3,948			—
Repurchases and repayments of debt	(3,450		)	(1,515		)
Proceeds from (repayments of) borrowings from Comcast, net	(898		)	1,132
Distributions to member	(1,720		)	(1,213		)
Distributions to noncontrolling interests	(165		)	(161		)
Purchase of Universal Studios Japan noncontrolling interests	(2,299		)	—
Other	86			354
Net cash provided by (used in) financing activities	(4,498		)	(1,403		)
Increase (decrease) in cash and cash equivalents	48			480
Cash and cash equivalents, beginning of period	1,966			1,410
Cash and cash equivalents, end of period	$	2,014		$	1,890

See accompanying notes to condensed consolidated financial statements.

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NBCUniversal Media, LLC

Condensed Consolidated Statement of Changes in Equity

(Unaudited)

(in millions)	Redeemable Noncontrolling Interests			Member’s Capital			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interests			Total Equity
Balance, December 31, 2015	$	372		$	32,834		$	(212	)	$	1,681		$	34,303
Dividends declared				(1,213		)							(1,213		)
Contributions from (distributions to) noncontrolling interests, net	(47		)							(114		)	(114		)
DreamWorks contributions				3,558						89			3,647
Other comprehensive income (loss)							328			321			649
Other	72			3						160			163
Net income (loss)	30			3,224						170			3,394
Balance, September 30, 2016	$	427		$	38,406		$	116		$	2,307		$	40,829
Balance, December 31, 2016	$	530		$	39,036		$	(135	)	$	2,116		$	41,017
Dividends declared				(1,720		)							(1,720		)
Contributions from (distributions to) noncontrolling interests, net	(56		)							(95		)	(95		)
Contribution from member				662									662
Other comprehensive income (loss)							(35		)	87			52
Purchase of Universal Studios Japan noncontrolling interests				(704		)	141			(1,736		)	(2,299		)
Other	(85		)	185						470			655
Net income (loss)	18			4,301						84			4,385
Balance, September 30, 2017	$	407		$	41,760		$	(29	)	$	926		$	42,657

See accompanying notes to condensed consolidated financial statements.

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NBCUniversal Media, LLC

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1: Condensed Consolidated Financial Statements

Basis of Presentation

Unless indicated otherwise, throughout these notes to the condensed consolidated financial statements, we refer to NBCUniversal and its consolidated subsidiaries as “we,” “us” and “our.” We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

Note 2: Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. However, we do expect that the new standard will impact the timing of recognition for our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. The updated guidance also requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to NBCUniversal would have decreased for the three and nine months ended September 30, 2017 by $95 million and $234 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

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NBCUniversal Media, LLC

Note 3: Significant Transactions

FCC Spectrum Auction

On April 13, 2017, the Federal Communications Commission announced the results of its spectrum auction. In the auction, we relinquished our spectrum rights in the New York, Philadelphia and Chicago designated market areas (“DMAs”) where NBC and Telemundo had overlapping spectrum. We received proceeds of $482 million in July 2017, which were recorded in other investing activities in our condensed consolidated statement of cash flows. We recognized a pretax gain of $337 million in other operating gains for the three months ended September 30, 2017 in our condensed consolidated statement of income. NBC and Telemundo stations will share broadcast signals in these DMAs.

Universal Studios Japan

On April 6, 2017, we acquired the remaining interests in Universal Studios Japan that we did not already own for $2.3 billion. The acquisition was funded through borrowings under our revolving credit agreement with Comcast. Because we maintained control of Universal Studios Japan, the difference between the consideration transferred and the recorded value of the noncontrolling interests, as well as the related accumulated other comprehensive income impact, were recorded to additional paid-in capital.

DreamWorks Animation

On August 22, 2016, Comcast acquired all of the outstanding stock of DreamWorks Animation for $3.8 billion. DreamWorks Animation’s stockholders received $41 in cash for each share of DreamWorks Animation common stock. DreamWorks Animation creates animated feature films, television series and specials, live entertainment, and related consumer products.

Following the acquisition, Comcast converted DreamWorks Animation to a limited liability company and contributed its equity to us as a capital contribution. The net assets contributed to us excluded deferred income taxes and other tax-related items recorded by Comcast. The results of operations for DreamWorks Animation are reported in our Filmed Entertainment segment following the acquisition date and are presented as if the initial equity contribution occurred on the date of Comcast’s acquisition.

Allocation of Purchase Price

The transaction was accounted for under the acquisition method of accounting and, accordingly, the assets and liabilities are to be recorded at their fair market values as of the acquisition date. We recorded the acquired assets and liabilities of DreamWorks Animation at their estimated fair values based on valuation analyses. In valuing acquired assets and liabilities, fair value estimates were primarily based on Level 3 inputs, including future expected cash flows, market rate assumptions and discount rates. The fair value of the assumed debt was primarily based on quoted market values. The fair value of the liability related to a tax receivable agreement that DreamWorks Animation had previously entered into with one of its former stockholders (the “tax receivable agreement”) was based on the contractual settlement provisions in the agreement. During the nine months ended September 30, 2017, we updated the allocation of purchase price for DreamWorks Animation based on final valuation analyses, which primarily resulted in increases to noncontrolling interests, intangible assets and goodwill and a decrease to working capital. The changes did not have a material impact on our condensed consolidated financial statements.

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement(a)	(146		)
Other noncurrent assets and liabilities and other(b)	461
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

(a) The tax receivable agreement was settled immediately following the acquisition and the payment was recorded as an operating activity in our condensed consolidated statement of cash flows in the third quarter of 2016. Comcast made a separate cash capital contribution of $146 million to fund the settlement which was recorded as a financing activity in our condensed consolidated statement of cash flows in the third quarter of 2016.

(b) Other included $279 million recorded to member’s capital that represented deferred income tax assets and other tax-related items recorded by Comcast but excluded from the net assets contributed to us.

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Revenue and net income attributable to the acquisition of DreamWorks Animation were not material for the three and nine months ended September 30, 2017 and 2016.

Note 4: Related Party Transactions

In the ordinary course of our business, we enter into transactions with Comcast.

We generate revenue from Comcast primarily from the distribution of our cable network programming, the fees received under retransmission consent agreements in our Broadcast Television segment and, to a lesser extent, the sale of advertising and our owned programming, and we incur expenses primarily related to advertising and various support services provided by Comcast to us.

Comcast is also the counterparty to one of our contractual obligations. As of September 30, 2017, the carrying value of the liability associated with this contractual obligation was $383 million.

The following tables present transactions with Comcast and its consolidated subsidiaries that are included in our condensed consolidated financial statements.

Condensed Consolidated Balance Sheet

(in millions)	September 30, 2017		December 31, 2016
Transactions with Comcast and Consolidated Subsidiaries
Receivables, net	$	327	$	285
Accounts payable and accrued expenses related to trade creditors	$	33	$	55
Accrued expenses and other current liabilities	$	39	$	4
Note payable to Comcast	$	1,805	$	2,703
Other noncurrent liabilities	$	389	$	389

Condensed Consolidated Statement of Income

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Transactions with Comcast and Consolidated Subsidiaries
Revenue	$	463		$	522		$	1,382		$	1,335
Operating costs and expenses	$	(38	)	$	(53	)	$	(148	)	$	(157	)
Other income (expense)	$	(20	)	$	(18	)	$	(67	)	$	(48	)

Note 5: Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,889		2,570
	8,563		8,486
Less: Current portion of programming rights	1,772		1,241
Film and television costs	$	6,791	$	7,245

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NBCUniversal Media, LLC

Note 6: Investments

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	4		6
	431		6
Equity Method:
Hulu	255		225
Other	432		336
	687		561
Cost Method:
BuzzFeed	400		400
Other	299		296
	699		696
Total investments	$	1,817	$	1,263

Fair Value Method

Snap

In March 2017, Comcast acquired an interest in Snap Inc. as part of its initial public offering. On March 31, 2017, Comcast contributed its investment in Snap to us as an equity contribution of $662 million, which was recorded in our condensed consolidated statement of equity based on the fair value of the investment as of March 31, 2017. We have classified our investment as an available-for-sale security. Snap is a camera company whose primary product is Snapchat, a camera app that was created to help people communicate through short videos and images.

Equity Method

The Weather Channel

In January 2016, following a legal restructuring at The Weather Channel, we and the other investors sold the entity holding The Weather Channel’s product and technology businesses to IBM. Following the close of the transaction, we continue to hold an investment in The Weather Channel cable network through a new holding company. As a result of the sale of our investment, we recognized a pretax gain of$108 million in other income (expense), net for the nine months ended September 30, 2016.

Note 7: Long-Term Debt

As of September 30, 2017, our debt, excluding the note payable to Comcast, had a carrying value of $12.4 billion and an estimated fair value of $13.5 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.

In May 2017, Universal Studios Japan entered into ¥450 billion ($3.9 billion at issuance) of new term loans with a final maturity of March 2022. We used the proceeds from these borrowings to repay in full $3.3 billion of Universal Studios Japan’s existing yen-denominated term loans and a portion of amounts outstanding under our revolving credit agreement with Comcast.

Cross-Guarantee Structure

We, Comcast and a 100% owned cable holding company subsidiary of Comcast (“CCCL Parent”) have fully and unconditionally guaranteed each other’s debt securities, including the $7 billion Comcast revolving credit facility due 2021. As of September 30, 2017, outstanding debt securities of $47.5 billion of Comcast and CCCL Parent were subject to the cross-guarantee structure.

We do not, however, guarantee the obligations of NBCUniversal Enterprise with respect to its $4.8 billion aggregate principal amount of senior notes, $1.5 billion revolving credit facility, commercial paper program, or $725 million liquidation preference of Series A cumulative preferred stock.

The Universal Studios Japan term loans are not subject to the cross-guarantee structure, however they have a separate guarantee from Comcast.

Senior Notes Exchange

In October 2017, we and Comcast announced and settled a private debt exchange transaction. Comcast issued $2.0 billion aggregate principal amount of new 3.969% senior notes due 2047, $2.0 billion aggregate principal amount of new 3.999% senior notes due 2049, and $1.5 billion aggregate principal amount of new 4.049% senior notes due 2052 in exchange for $3.9 billion aggregate

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principal amount of certain series of outstanding senior notes issued by Comcast and us, including $442 million of our 6.400% senior notes due 2040. The new notes are fully and unconditionally guaranteed by us and Comcast Cable Communications, LLC. In connection with the exchange transaction, we issued $610 million of 3.999% notes due 2049 to Comcast.

Note 8: Share-Based Compensation

Comcast maintains share-based compensation plans that consist primarily of awards of restricted share units and stock options to certain employees and directors as part of its approach to long-term incentive compensation. Additionally, through its employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions. Certain of our employees participate in these plans and the expense associated with their participation is settled in cash with Comcast.

Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	32	$	19	$	86	$	64
Stock options	3		3		10		7
Employee stock purchase plans	3		1		7		6
Total	$	38	$	23	$	103	$	77

Note 9: Supplemental Financial Information

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	6,610	$	6,799
Less: Allowance for returns and customer incentives	352		413
Less: Allowance for doubtful accounts	81		84
Receivables, net	$	6,177	$	6,302

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(233	)	$	—
Deferred gains (losses) on cash flow hedges	(4		)	(8		)
Unrecognized gains (losses) on employee benefit obligations	115			3
Cumulative translation adjustments	93			121
Accumulated other comprehensive income (loss)	$	(29	)	$	116

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Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	4,403		$	3,424
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	1,197			1,324
Equity in net (income) losses of investees, net	107			55
Cash received from investees	63			45
Net (gain) loss on investment activity and other	(45		)	(72		)
Deferred income taxes	(6		)	139
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	152			(338		)
Film and television costs, net	(75		)	(600		)
Accounts payable and accrued expenses related to trade creditors	(270		)	(114		)
Other operating assets and liabilities	46			(524		)
Net cash provided by operating activities	$	5,572		$	3,339

Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	53	$	69	$	340	$	354
Income taxes	$	64	$	33	$	213	$	155

Noncash Investing and Financing Activities

During the nine months ended September 30, 2017:

• we acquired $296 million of property and equipment and intangible assets that were accrued but unpaid

• Comcast contributed its investment in Snap to us at its fair value as of March 31, 2017, which was a noncash transaction (see Note 6 for additional information)

Note 10: Financial Data by Business Segment

We present our operations in four reportable business segments:

• Cable Networks:Consists primarily of our national cable networks, our regional sports and news networks, our international cable networks, and our cable television studio production operations.

• Broadcast Television:Consists primarily of the NBC and Telemundo broadcast networks, our NBC and Telemundo owned local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations.

• Filmed Entertainment:Consists primarily of the operations of Universal Pictures, which produces, acquires, markets and distributes filmed entertainment worldwide; our films are also produced under the Illumination, Focus Features and DreamWorks Animation names.

• Theme Parks:Consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan.

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to NBCUniversal below Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.

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	Three Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	2,603		$	905		$	179		$	726		$	5	$	4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(a)	15			(122		)	97			(219		)	66		37
Eliminations(b)	(71		)	1			—			1			—		—
Total	$	8,014		$	2,274		$	169		$	2,105		$	354	$	69

	Three Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	2,942		$	893		$	184	$	709		$	7	$	4
Broadcast Television(c)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(a)	1			(183		)	91		(274		)	67		34
Eliminations(b)	(84		)	(1		)	—		(1		)	—		—
Total	$	9,178		$	2,146		$	445	$	1,701		$	336	$	67

	Nine Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	7,940		$	3,076		$	574		$	2,502		$	15	$	11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(a)	32			(542		)	292			(834		)	119		101
Eliminations(b)	(243		)	(1		)	—			(1		)	—		—
Total	$	24,213		$	6,362		$	1,197		$	5,165		$	977	$	197

	Nine Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	7,961		$	2,793		$	561	$	2,232		$	15	$	8
Broadcast Television(c)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(a)	10			(518		)	268		(786		)	217		103
Eliminations(b)	(256		)	—			—		—			—		—
Total	$	23,142		$	5,457		$	1,324	$	4,133		$	991	$	181

(a) Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(b) Included in Eliminations are transactions that our segments enter into with one another, which consist primarily of the licensing of film and television content from our Filmed Entertainment and Broadcast Television segments to our Cable Networks segment.

(c) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(d) No single customer accounted for a significant amount of revenue in any period.

(e) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to NBCUniversal before net (income) loss attributable to noncontrolling interests, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of

56

NBCUniversal Media, LLC

income). This measure eliminates the significant level of noncash amortization expense that results from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to NBCUniversal, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	2,274		$	2,146		$	6,362		$	5,457
Depreciation	(253		)	(209		)	(749		)	(624		)
Amortization	(253		)	(236		)	(785		)	(700		)
Other operating gains	337			—			337			—
Other income (expense) items, net	(165		)	(195		)	(473		)	(398		)
Income before income taxes	$	1,940		$	1,506		$	4,692		$	3,735

(f) Other represents other operating gains in our condensed consolidated statement of income. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to our relinquishment of spectrum rights in our Broadcast Television segment.

57

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Brian L. Roberts, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Comcast Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017

/s/ BRIAN L. ROBERTS

Name: Brian L. Roberts

Title: Chief Executive Officer

I, Michael J. Cavanagh, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Comcast Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017

/s/ MICHAEL J. CAVANAGH

Name: Michael J. Cavanagh

Title: Chief Financial Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Brian L. Roberts, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of NBCUniversal Media, LLC;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017

/s/ BRIAN L. ROBERTS

Name: Brian L. Roberts

Title: Principal Executive Officer

I, Michael J. Cavanagh, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of NBCUniversal Media, LLC;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017

/s/ MICHAEL J. CAVANAGH

Name: Michael J. Cavanagh

Title: Principal Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

October 26, 2017

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Ladies and Gentlemen:

The certification set forth below is being submitted in connection with the Quarterly Report on Form 10-Q of Comcast Corporation (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Brian L. Roberts, the Chief Executive Officer, and Michael J. Cavanagh, the Chief Financial Officer, of Comcast Corporation, each certifies that, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Comcast Corporation.

/s/ BRIAN L. ROBERTS

Name: Brian L. Roberts

Title: Chief Executive Officer

/s/ MICHAEL J. CAVANAGH

Name: Michael J. Cavanagh

Title: Chief Financial Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

October 26, 2017

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Ladies and Gentlemen:

The certification set forth below is being submitted in connection with the Quarterly Report on Form 10-Q of NBCUniversal Media, LLC (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Brian L. Roberts, the Principal Executive Officer, and Michael J. Cavanagh, the Principal Financial Officer, of NBCUniversal Media, LLC, each certifies that, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of NBCUniversal Media, LLC.

/s/ BRIAN L. ROBERTS

Name: Brian L. Roberts

Title: Principal Executive Officer

/s/ MICHAEL J. CAVANAGH

Name: Michael J. Cavanagh

Title: Principal Financial Officer

XML

Document and Entity Information	9 Months Ended
	Sep. 30, 2017 shares
Document And Entity Information [Line Items]
Entity Registrant Name	COMCAST CORP
Entity Central Index Key	0001166691
Trading Symbol	cmcsa
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
NBCUniversal Media LLC [Member]
Document And Entity Information [Line Items]
Entity Registrant Name	NBCUniversal Media, LLC
Entity Central Index Key	0000902739
Entity Filer Category	Non-accelerated Filer
Class A Common Stock [Member]
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	4,664,327,455
Class B Common Stock [Member]
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	9,444,375

XML

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 4,114	$ 3,301
Receivables, net	7,915	7,955
Programming rights	1,779	1,250
Other current assets	2,152	3,855
Total current assets	15,960	16,361
Film and television costs	6,796	7,252
Investments	6,695	5,247
Property and equipment, net	37,856	36,253
Franchise rights	59,364	59,364
Goodwill	36,752	35,980
Other intangible assets, net	18,733	17,274
Other noncurrent assets, net	3,145	2,769
Total assets	185,301	180,500
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	6,976	6,915
Accrued participations and residuals	1,811	1,726
Deferred revenue	1,572	1,132
Accrued expenses and other current liabilities	5,849	6,282
Current portion of long-term debt	5,241	5,480
Total current liabilities	21,449	21,535
Long-term debt, less current portion	59,720	55,566
Deferred income taxes	35,602	34,854
Other noncurrent liabilities	10,914	10,925
Commitments and contingencies (Note 10)
Redeemable noncontrolling interests	1,353	1,446
Equity:
Preferred stock—authorized, 20,000,000 shares; issued, zero	0	0
Common stock	55	56
Additional paid-in capital	37,529	38,230
Retained earnings	24,979	23,076
Treasury stock, 872,791,028 Class A common shares	(7,517)	(7,517)
Accumulated other comprehensive income (loss)	381	98
Total Comcast Corporation shareholders’ equity	55,427	53,943
Noncontrolling interests	836	2,231
Total equity	56,263	56,174
Total liabilities and equity	185,301	180,500
NBCUniversal Media LLC [Member]
Current Assets:
Cash and cash equivalents	2,014	1,966
Receivables, net	6,177	6,302
Programming rights	1,772	1,241
Other current assets	1,114	938
Total current assets	11,077	10,447
Film and television costs	6,791	7,245
Investments	1,817	1,263
Property and equipment, net	11,040	10,511
Goodwill	23,963	23,323
Intangible assets, net	13,375	13,777
Other noncurrent assets, net	1,582	1,688
Total assets	69,645	68,254
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	1,449	1,647
Accrued participations and residuals	1,811	1,726
Program obligations	576	807
Deferred revenue	1,479	1,016
Accrued expenses and other current liabilities	1,807	1,888
Note payable to Comcast	1,805	2,703
Current portion of long-term debt	196	127
Total current liabilities	9,123	9,914
Long-term debt, less current portion	12,157	11,461
Accrued participations, residuals and program obligations	1,202	1,202
Other noncurrent liabilities	4,099	4,130
Commitments and contingencies (Note 10)
Redeemable noncontrolling interests	407	530
Equity:
Member’s capital	41,760	39,036
Accumulated other comprehensive income (loss)	(29)	(135)
Total NBCUniversal member’s equity	41,731	38,901
Noncontrolling interests	926	2,116
Total equity	42,657	41,017
Total liabilities and equity	69,645	68,254
Class A Common Stock [Member]
Equity:
Common stock	55	56
Class B Common Stock [Member]
Equity:
Common stock	$ 0	$ 0

XML

Condensed Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Property and equipment - accumulated depreciation	$ 49,943	$ 49,694
Other intangible assets - accumulated amortization	$ 12,371	$ 11,013
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares issued (in shares)	0	0
NBCUniversal Media LLC [Member]
Property and equipment - accumulated depreciation	$ 3,999	$ 3,350
Other intangible assets - accumulated amortization	$ 7,372	$ 6,568
Class A Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	7,500,000,000	7,500,000,000
Common stock, shares issued (in shares)	5,537,118,483	5,614,950,039
Common stock, shares outstanding (in shares)	4,664,327,455	4,742,159,011
Treasury stock (in shares)	872,791,028	872,791,028
Class B Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	9,444,375	9,444,375
Common stock, shares outstanding (in shares)	9,444,375	9,444,375

XML

Condensed Consolidated Statement of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue	$ 20,983	$ 21,319	$ 62,611	$ 59,378
Costs and Expenses:
Programming and production	6,077	7,003	18,492	17,926
Other operating and administrative	6,423	5,996	18,310	17,285
Advertising, marketing and promotion	1,553	1,485	4,748	4,510
Depreciation	1,991	1,865	5,876	5,518
Amortization	589	530	1,747	1,544
Other operating gains	(442)	0	(442)	0
Total costs and expenses	16,191	16,879	48,731	46,783
Operating income	4,792	4,440	13,880	12,595
Other Income (Expense):
Interest expense	(766)	(751)	(2,279)	(2,186)
Investment income (loss), net	82	80	205	168
Equity in net income (losses) of investees, net	(39)	(34)	12	(64)
Other income (expense), net	27	(11)	82	104
Total other income (expense)	(696)	(716)	(1,980)	(1,978)
Income before income taxes	4,096	3,724	11,900	10,617
Income tax expense	(1,413)	(1,400)	(4,035)	(3,989)
Net income	2,683	2,324	7,865	6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33)	(87)	(136)	(229)
Net income attributable to Comcast Corporation	$ 2,650	$ 2,237	$ 7,729	$ 6,399
Basic earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.56	$ 0.47	$ 1.64	$ 1.32
Diluted earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	0.55	0.46	1.61	1.31
Dividends declared per common share (in dollars per share)	$ 0.1575	$ 0.1375	$ 0.4725	$ 0.4125
NBCUniversal Media LLC [Member]
Revenue	$ 8,014	$ 9,178	$ 24,213	$ 23,142
Costs and Expenses:
Programming and production	3,257	4,501	10,157	10,503
Other operating and administrative	1,859	1,912	5,586	5,159
Advertising, marketing and promotion	624	619	2,108	2,023
Depreciation	253	209	749	624
Amortization	253	236	785	700
Other operating gains	(337)	0	(337)	0
Total costs and expenses	5,909	7,477	19,048	19,009
Operating income	2,105	1,701	5,165	4,133
Other Income (Expense):
Interest expense	(139)	(151)	(431)	(444)
Investment income (loss), net	10	6	34	20
Equity in net income (losses) of investees, net	(52)	(34)	(107)	(55)
Other income (expense), net	16	(16)	31	81
Total other income (expense)	(165)	(195)	(473)	(398)
Income before income taxes	1,940	1,506	4,692	3,735
Income tax expense	(98)	(139)	(289)	(311)
Net income	1,842	1,367	4,403	3,424
Net (income) loss attributable to noncontrolling interests	(17)	(78)	(102)	(200)
Net income attributable to Comcast Corporation	$ 1,825	$ 1,289	$ 4,301	$ 3,224

XML

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income	$ 2,683	$ 2,324	$ 7,865	$ 6,628
Unrealized gains (losses) on marketable securities, net of deferred taxes	(59)	(1)	(42)	2
Deferred gains (losses) on cash flow hedges, net of deferred taxes	16	12	28	(79)
Amounts reclassified to net income:
Realized (gains) losses on marketable securities, net of deferred taxes	(1)	0	(1)	(1)
Realized (gains) losses on cash flow hedges, net of deferred taxes	(12)	11	(26)	73
Employee benefit obligations, net of deferred taxes	(6)	0	51	2
Currency translation adjustments, net of deferred taxes	20	45	166	532
Comprehensive income	2,641	2,391	8,041	7,157
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33)	(87)	(136)	(229)
Other comprehensive (income) loss attributable to noncontrolling interests	(5)	(34)	(87)	(321)
Comprehensive income (loss) attributable to Comcast Corporation	2,603	2,270	7,818	6,607
NBCUniversal Media LLC [Member]
Net income	1,842	1,367	4,403	3,424
Unrealized gains (losses) on marketable securities, net of deferred taxes	(94)	0	(233)	0
Deferred gains (losses) on cash flow hedges, net of deferred taxes	(5)	5	(27)	(7)
Amounts reclassified to net income:
Employee benefit obligations, net of deferred taxes	(3)	0	101	4
Currency translation adjustments, net of deferred taxes	22	50	211	652
Comprehensive income	1,762	1,422	4,455	4,073
Net (income) loss attributable to noncontrolling interests	(17)	(78)	(102)	(200)
Other comprehensive (income) loss attributable to noncontrolling interests	(5)	(34)	(87)	(321)
Comprehensive income (loss) attributable to Comcast Corporation	$ 1,740	$ 1,310	$ 4,266	$ 3,552

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Condensed Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Unrealized gains (losses) on marketable securities, deferred taxes	$ 35	$ 0	$ 26	$ (1)
Deferred gains (losses) on cash flow hedges, deferred taxes	(9)	(7)	(16)	46
Realized (gains) losses on marketable securities, deferred taxes	0	0	0	1
Realized (gains) losses on cash flow hedges, deferred taxes	7	(6)	15	(42)
Employee benefit obligations, deferred taxes	3	0	(30)	(2)
Currency translation adjustments, deferred taxes	$ (8)	$ (6)	$ (47)	$ (122)

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Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating Activities
Net cash provided by operating activities	$ 15,961	$ 13,989
Investing Activities
Capital expenditures	(6,839)	(6,562)
Cash paid for intangible assets	(1,240)	(1,163)
Acquisitions and construction of real estate properties	(325)	(303)
Acquisitions, net of cash acquired	(429)	(3,904)
Proceeds from sales of investments	120	188
Purchases of investments	(2,064)	(618)
Deposits	0	(1,748)
Other	750	(42)
Net cash provided by (used in) investing activities	(10,027)	(14,152)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(2,807)	610
Proceeds from borrowings	11,460	9,231
Repurchases and repayments of debt	(5,021)	(2,994)
Repurchases of common stock under repurchase program and employee plans	(4,212)	(4,061)
Dividends paid	(2,147)	(1,944)
Purchase of Universal Studios Japan noncontrolling interests	(2,299)	0
Issuances of common stock	0	23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(198)	(194)
Other	103	4
Net cash provided by (used in) financing activities	(5,121)	675
Increase (decrease) in cash and cash equivalents	813	512
Cash and cash equivalents, beginning of period	3,301	2,295
Cash and cash equivalents, end of period	4,114	2,807
NBCUniversal Media LLC [Member]
Operating Activities
Net cash provided by operating activities	5,572	3,339
Investing Activities
Capital expenditures	(977)	(991)
Cash paid for intangible assets	(197)	(181)
Acquisitions of real estate properties	0	(78)
Proceeds from sales of investments	42	104
Purchases of investments	(368)	(74)
Other	474	(236)
Net cash provided by (used in) investing activities	(1,026)	(1,456)
Financing Activities
Proceeds from borrowings	3,948	0
Repurchases and repayments of debt	(3,450)	(1,515)
Proceeds from (repayments of) borrowings from Comcast, net	(898)	1,132
Purchase of Universal Studios Japan noncontrolling interests	(2,299)	0
Distributions to member	(1,720)	(1,213)
Distributions to noncontrolling interests	(165)	(161)
Other	86	354
Net cash provided by (used in) financing activities	(4,498)	(1,403)
Increase (decrease) in cash and cash equivalents	48	480
Cash and cash equivalents, beginning of period	1,966	1,410
Cash and cash equivalents, end of period	$ 2,014	$ 1,890

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Condensed Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Redeemable Noncontrolling Interests and Redeemable Subsidiary Preferred Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock at Cost [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	NBCUniversal Media LLC [Member]	NBCUniversal Media LLC [Member] Redeemable Noncontrolling Interest [Member]	NBCUniversal Media LLC [Member] Member's Capital [Member]	NBCUniversal Media LLC [Member] Accumulated Other Comprehensive Income (Loss) [Member]	NBCUniversal Media LLC [Member] Noncontrolling Interest [Member]	Class A Common Stock [Member] Common Stock [Member]	Class B Common Stock [Member] Common Stock [Member]
Beginning balance at Dec. 31, 2015	$ 53,978		$ 38,490	$ 21,413	$ (7,517)	$ (174)	$ 1,709						$ 57	$ 0
Beginning balance at Dec. 31, 2015								$ 34,303		$ 32,834	$ (212)	$ 1,681
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation plans	582		582
Repurchases of common stock under repurchase program and employee plans	(4,062)		(758)	(3,303)									(1)
Employee stock purchase plans	117		117
Dividends declared	(1,999)			(1,999)				(1,213)		(1,213)
Other comprehensive income (loss)	529					208	321	649			328	321
Contributions from (distributions to) noncontrolling interests, net	(99)						(99)	(114)				(114)
Contribution from member								3,647		3,558		89
Other	212		(33)				245	163		3		160
Net income (loss)	6,565			6,399			166	3,394		3,224		170
Ending balance at Sep. 30, 2016	55,823		38,398	22,510	(7,517)	34	2,342						56	0
Ending balance at Sep. 30, 2016								40,829		38,406	116	2,307
Beginning balance at Dec. 31, 2015		$ 1,221							$ 372
Increase (Decrease) in Temporary Equity [Roll Forward]
Contributions from (distributions to) noncontrolling interests, net		(20)							(47)
Other		62							72
Net income (loss)		63							30
Ending balance at Sep. 30, 2016		1,326							427
Beginning balance at Dec. 31, 2016	56,174		38,230	23,076	(7,517)	98	2,231						56	0
Beginning balance at Dec. 31, 2016								41,017		39,036	(135)	2,116
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation plans	440		440
Repurchases of common stock under repurchase program and employee plans	(4,221)		(633)	(3,587)									(1)
Employee stock purchase plans	140		140
Dividends declared	(2,239)			(2,239)				(1,720)		(1,720)
Other comprehensive income (loss)	176					89	87	52			(35)	87
Contributions from (distributions to) noncontrolling interests, net	(81)						(81)	(95)				(95)
Contribution from member								662		662
Purchase of Universal Studios Japan noncontrolling interests	(2,238)		(696)			194	(1,736)	(2,299)		(704)	141	(1,736)
Other	299		48				251	655		185		470
Net income (loss)	7,813			7,729			84	4,385		4,301		84
Ending balance at Sep. 30, 2017	56,263		$ 37,529	$ 24,979	$ (7,517)	$ 381	$ 836						$ 55	$ 0
Ending balance at Sep. 30, 2017								42,657		$ 41,760	$ (29)	$ 926
Beginning balance at Dec. 31, 2016	1,446	1,446						530	530
Increase (Decrease) in Temporary Equity [Roll Forward]
Contributions from (distributions to) noncontrolling interests, net		(31)							(56)
Other		(114)							(85)
Net income (loss)		52							18
Ending balance at Sep. 30, 2017	$ 1,353	$ 1,353						$ 407	$ 407

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Condensed Consolidated Financial Statements

9 Months Ended

Sep. 30, 2017

Condensed Consolidated Financial Statements [Line Items]

Condensed Consolidated Financial Statements

Condensed Consolidated Financial Statements

Basis of Presentation

We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

Stock Split

On January 24, 2017, our Board of Directors approved a two-for-one stock split in the form of a 100% stock dividend that was distributed on February 17, 2017 to shareholders of record as of February 8, 2017. The stock split was in the form of one additional share for every share held and was payable in shares of Class A common stock on the existing Class A common stock and Class B common stock. All share-based data, including the number of shares outstanding and per share amounts, have been adjusted to reflect the stock split for all periods presented.

Reclassifications

Reclassifications have been made to our condensed consolidated financial statements for the prior year periods to conform to classifications used in 2017.

NBCUniversal Media LLC [Member]

Condensed Consolidated Financial Statements [Line Items]

Condensed Consolidated Financial Statements

Condensed Consolidated Financial Statements

Basis of Presentation

Unless indicated otherwise, throughout these notes to the condensed consolidated financial statements, we refer to NBCUniversal and its consolidated subsidiaries as “we,” “us” and “our.” We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2017

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. Upon adoption, we anticipate implementing certain changes in the presentation of revenue and expenses, including changes related to the allocation of revenue among the cable services included in a bundle that our residential customers purchase at a discount. We also expect that the new standard will impact the timing of recognition for (1) our Cable Communications segment’s installation revenue and commission expenses, which will be recognized as revenue and costs over a period of time instead of immediately, and (2) our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. In addition, the updated guidance requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to Comcast Corporation would have decreased for the three and nine months ended September 30, 2017 by $63 million and $47 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

Share-Based Compensation

In March 2016, the FASB updated the accounting guidance that affects several aspects of the accounting for share-based compensation. The most significant change for us relates to the presentation of the income and withholding tax consequences of share-based compensation in our consolidated financial statements. Among the changes, the updated guidance requires that the excess income tax benefits or deficiencies that arise when the tax consequences of share-based compensation differ from amounts previously recognized in the statement of income be recognized as income tax benefit or expense in the statement of income rather than as additional paid-in capital in the balance sheet. The guidance also states that excess income tax benefits should not be presented separately from other income taxes in the statement of cash flows and, thus, should be classified as an operating activity rather than a financing activity as they were under the prior guidance. In addition, the updated guidance requires that, when an employer withholds shares upon exercise of options or the vesting of restricted stock for the purpose of meeting withholding tax requirements, the cash paid for withholding taxes be classified as a financing activity and we include these amounts in the caption “repurchases of common stock under repurchase program and employee plans” in our consolidated statement of cash flows. We previously recorded these amounts as operating activities.

We adopted the updated guidance as of January 1, 2017 and, as required, we prospectively adopted the provisions that relate to the recognition of the excess income tax benefits or deficiencies in our condensed consolidated statement of income. The excess tax benefits resulted in a decrease to income tax expense of $49 million and $247 million for the three and nine months ended September 30, 2017, respectively. In addition, the excess tax benefits resulted in an increase to diluted earnings per common share attributable to Comcast Corporation shareholders of $0.01 and $0.04 for the three and nine months ended September 30, 2017, respectively. As required by the updated guidance, the prior year periods in our condensed consolidated statement of income were not adjusted as a result of these provisions.

In addition, we retrospectively adopted the provisions of this guidance related to changes to the statement of cash flows for all periods presented. This resulted in increases to net cash provided by operating activities and decreases to net cash provided by (used in) financing activities of $644 million and $492 million for the nine months ended September 30, 2017 and 2016, respectively.

NBCUniversal Media LLC [Member]

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. However, we do expect that the new standard will impact the timing of recognition for our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. The updated guidance also requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to NBCUniversal would have decreased for the three and nine months ended September 30, 2017 by $95 million and $234 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

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Earnings Per Share

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Diluted EPS

	Three Months Ended September 30
	2017					2016
(in millions, except per share data)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	2,650	4,698	$	0.56	$	2,237	4,805	$	0.47
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			79					56
Diluted EPS attributable to Comcast Corporation shareholders	$	2,650	4,777	$	0.55	$	2,237	4,861	$	0.46

	Nine Months Ended September 30
	2017					2016
(in millions, except per share amounts)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	7,729	4,725	$	1.64	$	6,399	4,837	$	1.32
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			81					56
Diluted EPS attributable to Comcast Corporation shareholders	$	7,729	4,806	$	1.61	$	6,399	4,893	$	1.31

Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Our potentially dilutive securities include potential common shares related to our stock options and our restricted share units (“RSUs”). The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material for the three and nine months ended September 30, 2017 and 2016.

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Significant Transactions

9 Months Ended

Sep. 30, 2017

Business Acquisition [Line Items]

Significant Transactions

Significant Transactions

FCC Spectrum Auction

On April 13, 2017, the Federal Communications Commission announced the results of its spectrum auction. In the auction, NBCUniversal relinquished its spectrum rights in the New York, Philadelphia and Chicago designated market areas (“DMAs”) where NBC and Telemundo had overlapping spectrum. NBCUniversal received proceeds of $482 million in July 2017, which were recorded in other investing activities in our condensed consolidated statement of cash flows. NBCUniversal recognized a pretax gain of $337 million in other operating gains for the three months ended September 30, 2017 in our condensed consolidated statement of income. NBC and Telemundo stations will share broadcast signals in these DMAs. In connection with the auction, we also acquired the rights to $1.7 billion of spectrum, which were recorded to other intangible assets, net in our condensed consolidated balance sheet. We had previously made a deposit of $1.8 billion to participate in the auction in the third quarter of 2016 and received a refund for amounts in excess of the purchase price in the second quarter of 2017.

Universal Studios Japan

On April 6, 2017, we acquired the remaining interests in Universal Studios Japan that we did not already own for $2.3 billion. The acquisition was funded through cash on hand and borrowings under our commercial paper program. Because we maintained control of Universal Studios Japan, the difference between the consideration transferred and the recorded value of the noncontrolling interests, as well as the related tax and accumulated other comprehensive income impacts, were recorded to additional paid-in capital.

DreamWorks Animation

On August 22, 2016, we acquired all of the outstanding stock of DreamWorks Animation for $3.8 billion. DreamWorks Animation’s stockholders received $41 in cash for each share of DreamWorks Animation common stock. DreamWorks Animation creates animated feature films, television series and specials, live entertainment, and related consumer products. The results of operations for DreamWorks Animation are reported in our Filmed Entertainment segment following the acquisition date.

Allocation of Purchase Price

The transaction was accounted for under the acquisition method of accounting and, accordingly, the assets and liabilities are to be recorded at their fair market values as of the acquisition date. We recorded the acquired assets and liabilities of DreamWorks Animation at their estimated fair values based on valuation analyses. In valuing acquired assets and liabilities, fair value estimates were primarily based on Level 3 inputs, including future expected cash flows, market rate assumptions and discount rates. The fair value of the assumed debt was primarily based on quoted market values. The fair value of the liability related to a tax receivable agreement that DreamWorks Animation had previously entered into with one of its former stockholders (the “tax receivable agreement”) was based on the contractual settlement provisions in the agreement. Further, we recorded deferred income taxes based on the tax basis of the acquired net assets and the valuation allowances based on the expected use of net operating loss carryforwards. The goodwill is not deductible for tax purposes. During the nine months ended September 30, 2017, we updated the allocation of purchase price for DreamWorks Animation based on final valuation analyses, which primarily resulted in increasesto noncontrolling interests, intangible assets and goodwill and decreases to working capital and deferred income tax assets. The changes did not have a material impact on our condensed consolidated financial statements.

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement	(146		)
Deferred income taxes	291
Other noncurrent assets and liabilities	170
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

The tax receivable agreement was settled immediately following the acquisition and the payment was recorded as an operating activity in our condensed consolidated statement of cash flows in the third quarter of 2016. We also repaid all of the assumed debt of DreamWorks Animation in the third quarter of 2016.

Revenue and net income attributable to the acquisition of DreamWorks Animation were not material for the three and nine monthsended September 30, 2017 and 2016.

NBCUniversal Media LLC [Member]

Business Acquisition [Line Items]

Significant Transactions

Significant Transactions

FCC Spectrum Auction

On April 13, 2017, the Federal Communications Commission announced the results of its spectrum auction. In the auction, we relinquished our spectrum rights in the New York, Philadelphia and Chicago designated market areas (“DMAs”) where NBC and Telemundo had overlapping spectrum. We received proceeds of $482 million in July 2017, which were recorded in other investing activities in our condensed consolidated statement of cash flows. We recognized a pretax gain of $337 million in other operating gains for the three months ended September 30, 2017 in our condensed consolidated statement of income. NBC and Telemundo stations will share broadcast signals in these DMAs.

Universal Studios Japan

On April 6, 2017, we acquired the remaining interests in Universal Studios Japan that we did not already own for $2.3 billion. The acquisition was funded through borrowings under our revolving credit agreement with Comcast. Because we maintained control of Universal Studios Japan, the difference between the consideration transferred and the recorded value of the noncontrolling interests, as well as the related accumulated other comprehensive income impact, were recorded to additional paid-in capital.

DreamWorks Animation

On August 22, 2016, Comcast acquired all of the outstanding stock of DreamWorks Animation for $3.8 billion. DreamWorks Animation’s stockholders received $41 in cash for each share of DreamWorks Animation common stock. DreamWorks Animation creates animated feature films, television series and specials, live entertainment, and related consumer products.

Following the acquisition, Comcast converted DreamWorks Animation to a limited liability company and contributed its equity to us as a capital contribution. The net assets contributed to us excluded deferred income taxes and other tax-related items recorded by Comcast. The results of operations for DreamWorks Animation are reported in our Filmed Entertainment segment following the acquisition date and are presented as if the initial equity contribution occurred on the date of Comcast’s acquisition.

Allocation of Purchase Price

The transaction was accounted for under the acquisition method of accounting and, accordingly, the assets and liabilities are to be recorded at their fair market values as of the acquisition date. We recorded the acquired assets and liabilities of DreamWorks Animation at their estimated fair values based on valuation analyses. In valuing acquired assets and liabilities, fair value estimates were primarily based on Level 3 inputs, including future expected cash flows, market rate assumptions and discount rates. The fair value of the assumed debt was primarily based on quoted market values. The fair value of the liability related to a tax receivable agreement that DreamWorks Animation had previously entered into with one of its former stockholders (the “tax receivable agreement”) was based on the contractual settlement provisions in the agreement. During the nine months ended September 30, 2017, we updated the allocation of purchase price for DreamWorks Animation based on final valuation analyses, which primarily resulted in increases to noncontrolling interests, intangible assets and goodwill and a decrease to working capital. The changes did not have a material impact on our condensed consolidated financial statements.

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement(a)	(146		)
Other noncurrent assets and liabilities and other(b)	461
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

(a) The tax receivable agreement was settled immediately following the acquisition and the payment was recorded as an operating activity in our condensed consolidated statement of cash flows in the third quarter of 2016. Comcast made a separate cash capital contribution of $146 million to fund the settlement which was recorded as a financing activity in our condensed consolidated statement of cash flows in the third quarter of 2016.

(b) Other included $279 million recorded to member’s capital that represented deferred income tax assets and other tax-related items recorded by Comcast but excluded from the net assets contributed to us.

Revenue and net income attributable to the acquisition of DreamWorks Animation were not material for the three and nine months ended September 30, 2017 and 2016.

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Related Party Transactions

9 Months Ended

Sep. 30, 2017

NBCUniversal Media LLC [Member]

Related Party Transaction [Line Items]

Related Party Transactions

Related Party Transactions

In the ordinary course of our business, we enter into transactions with Comcast.

We generate revenue from Comcast primarily from the distribution of our cable network programming, the fees received under retransmission consent agreements in our Broadcast Television segment and, to a lesser extent, the sale of advertising and our owned programming, and we incur expenses primarily related to advertising and various support services provided by Comcast to us.

Comcast is also the counterparty to one of our contractual obligations. As of September 30, 2017, the carrying value of the liability associated with this contractual obligation was $383 million.

The following tables present transactions with Comcast and its consolidated subsidiaries that are included in our condensed consolidated financial statements.

Condensed Consolidated Balance Sheet

(in millions)	September 30, 2017		December 31, 2016
Transactions with Comcast and Consolidated Subsidiaries
Receivables, net	$	327	$	285
Accounts payable and accrued expenses related to trade creditors	$	33	$	55
Accrued expenses and other current liabilities	$	39	$	4
Note payable to Comcast	$	1,805	$	2,703
Other noncurrent liabilities	$	389	$	389

Condensed Consolidated Statement of Income

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Transactions with Comcast and Consolidated Subsidiaries
Revenue	$	463		$	522		$	1,382		$	1,335
Operating costs and expenses	$	(38	)	$	(53	)	$	(148	)	$	(157	)
Other income (expense)	$	(20	)	$	(18	)	$	(67	)	$	(48	)

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Film and Television Costs

9 Months Ended

Sep. 30, 2017

Film And Television Cost [Line Items]

Film And Television Costs

Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,901		2,586
	8,575		8,502
Less: Current portion of programming rights	1,779		1,250
Film and television costs	$	6,796	$	7,252

NBCUniversal Media LLC [Member]

Film And Television Cost [Line Items]

Film And Television Costs

Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,889		2,570
	8,563		8,486
Less: Current portion of programming rights	1,772		1,241
Film and television costs	$	6,791	$	7,245

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Investments

9 Months Ended

Sep. 30, 2017

Fair Value, Equity And Cost Method Investments [Line Items]

Investments

Investments

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	164		198
	591		198
Equity Method:
Atairos	2,225		1,601
Hulu	255		225
Other	871		550
	3,351		2,376
Cost Method:
AirTouch	1,610		1,599
BuzzFeed	400		400
Other	756		771
	2,766		2,770
Total investments	6,708		5,344
Less: Current investments	13		97
Noncurrent investments	$	6,695	$	5,247

Investment Income (Loss), Net

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Gains (losses) on sales and exchanges of investments, net	$	10		$	24		$	9		$	39
Investment impairment losses	(3		)	(7		)	(9		)	(28		)
Interest and dividend income	36			31			101			91
Other, net	39			32			104			66
Investment income (loss), net	$	82		$	80		$	205		$	168

Fair Value Method

Snap

In March 2017, we acquired an interest in Snap Inc. for $500 millionas part of its initial public offering, which we have classified as an available-for-sale security.Snap is a camera company whose primary product is Snapchat, a camera app that was created to help people communicate through short videos and images.

Equity Method

Atairos

For the nine months ended September 30, 2017, we made cash capital contributions totaling $994 million to Atairos Group, Inc., which included amounts accrued as of December 31, 2016. Atairos follows investment company accounting and records its investments at their fair values each reporting period with the net gains or losses reflected in its statement of income. We recognize our share of these gains and losses in equity in net income (losses) of investees, net. For the three and nine months ended September 30, 2017, our share of Atairos income was $7 million and $106 million, respectively. For the three and nine months ended September 30, 2016, our share of Atairos losses was $9 million and $36 million, respectively.

In July 2017, we sold a business to a company owned by Atairos and received as consideration an investment in that company, which we account for as an equity method investment. In connection with the sale of the business, we recognized a pretax gain of $105 million in other operating gains for the three months ended September 30, 2017.

The Weather Channel

In January 2016, following a legal restructuring at The Weather Channel, we and the other investors sold the entity holding The Weather Channel’s product and technology businesses to IBM. Following the close of the transaction, we continue to hold an investment in The Weather Channel cable network through a new holding company. As a result of the sale of our investment, we recognized a pretax gain of$108 million in other income (expense), net for the nine months ended September 30, 2016.

Cost Method

AirTouch

We hold two series of preferred stock of Verizon Americas, Inc., formerly known as AirTouch Communications, Inc. (“AirTouch”), a subsidiary of Verizon Communications Inc., which are redeemable in April 2020. As of September 30, 2017, the estimated fair value of the AirTouch preferred stock was $1.7 billion. The estimated fair value of the associated liability related to the redeemable subsidiary preferred shares issued by one of our consolidated subsidiaries was $1.8 billion. The estimated fair values are based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

NBCUniversal Media LLC [Member]

Fair Value, Equity And Cost Method Investments [Line Items]

Investments

Investments

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	4		6
	431		6
Equity Method:
Hulu	255		225
Other	432		336
	687		561
Cost Method:
BuzzFeed	400		400
Other	299		296
	699		696
Total investments	$	1,817	$	1,263

Fair Value Method

Snap

In March 2017, Comcast acquired an interest in Snap Inc. as part of its initial public offering. On March 31, 2017, Comcast contributed its investment in Snap to us as an equity contribution of $662 million, which was recorded in our condensed consolidated statement of equity based on the fair value of the investment as of March 31, 2017. We have classified our investment as an available-for-sale security. Snap is a camera company whose primary product is Snapchat, a camera app that was created to help people communicate through short videos and images.

Equity Method

The Weather Channel

In January 2016, following a legal restructuring at The Weather Channel, we and the other investors sold the entity holding The Weather Channel’s product and technology businesses to IBM. Following the close of the transaction, we continue to hold an investment in The Weather Channel cable network through a new holding company. As a result of the sale of our investment, we recognized a pretax gain of$108 million in other income (expense), net for the nine months ended September 30, 2016.

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Long-Term Debt

9 Months Ended

Sep. 30, 2017

Debt Instrument [Line Items]

Long-Term Debt

Long-Term Debt

As of September 30, 2017, our debt had a carrying value of $65.0 billion and an estimated fair value of $71.7 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.

Debt Borrowings and Repayments

In August 2017, we issued $1.65 billion aggregate principal amount of 3.15% senior notes due 2028 and $850 million aggregate principal amount of 4.00% senior notes due 2047. In June 2017, NBCUniversal Enterprise issued $1.5 billion aggregate principal amount of senior floating rate notes due 2021. In March 2017, we issued $1.005 billion aggregate principal amount of 4.45% senior notes due 2047. In January 2017, we issued $1.25 billion aggregate principal amount of 3.00% senior notes due 2024 and $1.25 billion aggregate principal amount of 3.30% senior notes due 2027.

In May 2017, we repaid at maturity $550 million aggregate principal amount of 8.875% senior notes due 2017. In January 2017, we repaid at maturity $1.0 billion aggregate principal amount of 6.50% senior notes due 2017.

In May 2017, Universal Studios Japan entered into ¥450 billion ($3.9 billion at issuance) of new term loans with a final maturity of March 2022. We used the proceeds from these borrowings to repay in full $3.3 billion of Universal Studios Japan’s existing yen-denominated term loans and a portion of amounts outstanding under our commercial paper program.

Revolving Credit Facilities

As of September 30, 2017, amounts available under our consolidated revolving credit facilities, net of amounts outstanding under our commercial paper programs and outstanding letters of credit, totaled $8.3 billion, which included $1.5 billion available under NBCUniversal Enterprise’s revolving credit facility.

Commercial Paper Programs

In June 2017, we increased the Comcast and NBCUniversal Enterprise commercial paper programs to $7.0 billion and $1.5 billion, respectively, to coincide with the borrowing capacities under the Comcast and NBCUniversal Enterprise revolving credit facilities.

As of September 30, 2017, Comcast and NBCUniversal Enterprise had no commercial paper outstanding.

Senior Notes Exchange

In October 2017, we and NBCUniversal announced and settled a private debt exchange transaction. We issued $2.0 billion aggregate principal amount of new 3.969% senior notes due 2047, $2.0 billion aggregate principal amount of new 3.999% senior notes due 2049, and $1.5 billion aggregate principal amount of new 4.049% senior notes due 2052 in exchange for $3.9 billion aggregate principal amount of certain series of outstanding senior notes issued by Comcast and NBCUniversal. The new notes are fully and unconditionally guaranteed by NBCUniversal and Comcast Cable Communications, LLC.

NBCUniversal Media LLC [Member]

Debt Instrument [Line Items]

Long-Term Debt

Long-Term Debt

As of September 30, 2017, our debt, excluding the note payable to Comcast, had a carrying value of $12.4 billion and an estimated fair value of $13.5 billion. The estimated fair value of our publicly traded debt was primarily based on Level 1 inputs that use quoted market values for the debt. The estimated fair value of debt for which there are no quoted market prices was based on Level 2 inputs that use interest rates available to us for debt with similar terms and remaining maturities.

In May 2017, Universal Studios Japan entered into ¥450 billion ($3.9 billion at issuance) of new term loans with a final maturity of March 2022. We used the proceeds from these borrowings to repay in full $3.3 billion of Universal Studios Japan’s existing yen-denominated term loans and a portion of amounts outstanding under our revolving credit agreement with Comcast.

Cross-Guarantee Structure

We, Comcast and a 100% owned cable holding company subsidiary of Comcast (“CCCL Parent”) have fully and unconditionally guaranteed each other’s debt securities, including the $7 billion Comcast revolving credit facility due 2021. As of September 30, 2017, outstanding debt securities of $47.5 billion of Comcast and CCCL Parent were subject to the cross-guarantee structure.

We do not, however, guarantee the obligations of NBCUniversal Enterprise with respect to its $4.8 billion aggregate principal amount of senior notes, $1.5 billion revolving credit facility, commercial paper program, or $725 million liquidation preference of Series A cumulative preferred stock.

The Universal Studios Japan term loans are not subject to the cross-guarantee structure, however they have a separate guarantee from Comcast.

Senior Notes Exchange

In October 2017, we and Comcast announced and settled a private debt exchange transaction. Comcast issued $2.0 billion aggregate principal amount of new 3.969% senior notes due 2047, $2.0 billion aggregate principal amount of new 3.999% senior notes due 2049, and $1.5 billion aggregate principal amount of new 4.049% senior notes due 2052 in exchange for $3.9 billion aggregate principal amount of certain series of outstanding senior notes issued by Comcast and us, including $442 million of our 6.400% senior notes due 2040. The new notes are fully and unconditionally guaranteed by us and Comcast Cable Communications, LLC. In connection with the exchange transaction, we issued $610 million of 3.999% notes due 2049 to Comcast.

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Share-Based Compensation

9 Months Ended

Sep. 30, 2017

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-Based Compensation

Share-Based Compensation

Our share-based compensation plans consist primarily of awards of RSUs and stock options to certain employees and directors as part of our approach to long-term incentive compensation. Additionally, through our employee stock purchase plans, employees are able to purchase shares of our common stock at a discount through payroll deductions.

In March 2017, we granted 10.6 million RSUs and 39.1 million stock options related to our annual management awards. The weighted-average fair values associated with these grants were $37.42 per RSU and $7.01 per stock option.

Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	99	$	77	$	284	$	236
Stock options	52		48		155		133
Employee stock purchase plans	8		6		25		22
Total	$	159	$	131	$	464	$	391

As of September 30, 2017, we had unrecognized pretax compensation expense of $886 million and $451 million related to nonvested RSUs and nonvested stock options, respectively.

NBCUniversal Media LLC [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-Based Compensation

Share-Based Compensation

Comcast maintains share-based compensation plans that consist primarily of awards of restricted share units and stock options to certain employees and directors as part of its approach to long-term incentive compensation. Additionally, through its employee stock purchase plans, employees are able to purchase shares of Comcast common stock at a discount through payroll deductions. Certain of our employees participate in these plans and the expense associated with their participation is settled in cash with Comcast.

Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	32	$	19	$	86	$	64
Stock options	3		3		10		7
Employee stock purchase plans	3		1		7		6
Total	$	38	$	23	$	103	$	77

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Supplemental Financial Information

9 Months Ended

Sep. 30, 2017

Supplemental Financial Information [Line Items]

Supplemental Financial Information

Supplemental Financial Information

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	8,549	$	8,622
Less: Allowance for returns and customer incentives	357		417
Less: Allowance for doubtful accounts	277		250
Receivables, net	$	7,915	$	7,955

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(43	)	$	2
Deferred gains (losses) on cash flow hedges	(12		)	(52		)
Unrecognized gains (losses) on employee benefit obligations	270			8
Cumulative translation adjustments	166			76
Accumulated other comprehensive income (loss), net of deferred taxes	$	381		$	34

Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	7,865		$	6,628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	7,181			7,062
Share-based compensation	594			495
Noncash interest expense (income), net	187			172
Equity in net (income) losses of investees, net	(12		)	64
Cash received from investees	72			58
Net (gain) loss on investment activity and other	(193		)	(159		)
Deferred income taxes	678			985
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	28			(315		)
Film and television costs, net	(71		)	(593		)
Accounts payable and accrued expenses related to trade creditors	(17		)	46
Other operating assets and liabilities	(351		)	(454		)
Net cash provided by operating activities	$	15,961		$	13,989

Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	905	$	808	$	2,277	$	2,043
Income taxes	$	1,206	$	1,031	$	3,415	$	2,716

Noncash Investing and Financing Activities

During the nine months ended September 30, 2017:

• we acquired $1.4 billion of property and equipment and intangible assets that were accrued but unpaid

• we recorded a liability of $736 million for a quarterly cash dividend of $0.1575 per common share to be paid in October2017

NBCUniversal Media LLC [Member]

Supplemental Financial Information [Line Items]

Supplemental Financial Information

Supplemental Financial Information

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	6,610	$	6,799
Less: Allowance for returns and customer incentives	352		413
Less: Allowance for doubtful accounts	81		84
Receivables, net	$	6,177	$	6,302

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(233	)	$	—
Deferred gains (losses) on cash flow hedges	(4		)	(8		)
Unrecognized gains (losses) on employee benefit obligations	115			3
Cumulative translation adjustments	93			121
Accumulated other comprehensive income (loss)	$	(29	)	$	116

Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	4,403		$	3,424
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	1,197			1,324
Equity in net (income) losses of investees, net	107			55
Cash received from investees	63			45
Net (gain) loss on investment activity and other	(45		)	(72		)
Deferred income taxes	(6		)	139
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	152			(338		)
Film and television costs, net	(75		)	(600		)
Accounts payable and accrued expenses related to trade creditors	(270		)	(114		)
Other operating assets and liabilities	46			(524		)
Net cash provided by operating activities	$	5,572		$	3,339

Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	53	$	69	$	340	$	354
Income taxes	$	64	$	33	$	213	$	155

Noncash Investing and Financing Activities

During the nine months ended September 30, 2017:

• we acquired $296 million of property and equipment and intangible assets that were accrued but unpaid

• Comcast contributed its investment in Snap to us at its fair value as of March 31, 2017, which was a noncash transaction (see Note 6 for additional information)

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Redeemable Subsidiary Preferred Stock

As of September 30, 2017, the fair value of the NBCUniversal Enterprise redeemable subsidiary preferred stock was $756 million. The estimated fair value is based on Level 2 inputs that use pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

Contingencies

We were a defendant in a lawsuit filed in December 2011 by Sprint Communications Company L.P. (“Sprint”) in the United States District Court for the District of Kansas. Sprint’s initial complaint alleged that Comcast Digital Voice and XFINITY Voice infringe twelve Sprint patents covering various aspects of a telecommunications system. In March 2015, Sprint withdrew its allegations of infringement for two of the patents. In December 2016, the Court granted summary judgment for us with respect to non-infringement on one of the patents and granted summary judgment for Sprint on one of the patents as to infringement with respect to some but not all of our accused telecommunications systems but not as to the patent’s validity. In January 2017, the Court entered judgment in favor of us on Sprint’s claims for infringement of two of the patents. In March 2017, Sprint indicated that it would not proceed to trial on three of the patents. Trial with respect to the four remaining patents, including the patent for which the Court granted partial summary judgment to Sprint, was set to begin on October 23, 2017. On October 16, 2017, the parties entered into a settlement agreement which dismisses all claims and resolves the parties’ disputes asserted in the matters described above, as well as in all other outstanding patent litigation matters between the parties, for a payment to Sprint and certain contractual rights. In connection therewith, we recorded a charge of $250 million in the third quarter of 2017.

We also are a defendant in several unrelated lawsuits claiming infringement of various patents relating to various aspects of our businesses. In certain of these cases, other industry participants are also defendants, and also in certain of these cases, we expect that any potential liability would be in part or in whole the responsibility of our equipment and technology vendors under applicable contractual indemnification provisions. In addition, we are subject to other legal proceedings and claims that arise in the ordinary course of our business. While the amount of ultimate liability with respect to such actions is not expected to materially affect our results of operations, cash flows or financial position, any litigation resulting from any such legal proceedings or claims could be time-consuming and injure our reputation.

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Financial Data by Business Segment

9 Months Ended

Sep. 30, 2017

Segment Reporting Information [Line Items]

Financial Data by Business Segment

Financial Data by Business Segment

We present our operations in five reportable business segments:

• Cable Communications: Consists of the operations of Comcast Cable, which is one of the nation’s largest providers of video, high-speed Internet, voice, and security and automation services to residential customers under the XFINITY brand; we also provide these and other services to business customers and sell advertising.

• Cable Networks:Consists primarily of our national cable networks, our regional sports and news networks, our international cable networks, and our cable television studio production operations.

• Broadcast Television:Consists primarily of the NBC and Telemundo broadcast networks, our NBC and Telemundo owned local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations.

• Filmed Entertainment:Consists primarily of the operations of Universal Pictures, which produces, acquires, markets and distributes filmed entertainment worldwide; our films are also produced under the Illumination, Focus Features and DreamWorks Animation names.

• Theme Parks:Consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan.

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation below Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.

	Three Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	13,203		$	5,246		$	2,049		$	3,197		$	2,061	$	322
NBCUniversal
Cable Networks	2,603			905			179			726			5		4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(b)	15			(122		)	97			(219		)	66		37
Eliminations(c)	(71		)	1			—			1			—		—
NBCUniversal	8,014			2,274			169			2,105			354		69
Corporate and Other(d)	266			(349		)	170			(519		)	19		13
Eliminations(c)	(500		)	9			—			9			—		—
Comcast Consolidated	$	20,983		$	7,180		$	2,388		$	4,792		$	2,434	$	404

	Three Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	12,557		$	4,986		$	1,929	$	3,057		$	2,044	$	352
NBCUniversal
Cable Networks(e)	2,942			893			184		709			7		4
Broadcast Television(e)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(b)	1			(183		)	91		(274		)	67		34
Eliminations(c)	(84		)	(1		)	—		(1		)	—		—
NBCUniversal	9,178			2,146			445		1,701			336		67
Corporate and Other(d)	168			(223		)	21		(244		)	26		7
Eliminations(c)	(584		)	(74		)	—		(74		)	—		—
Comcast Consolidated	$	21,319		$	6,835		$	2,395	$	4,440		$	2,406	$	426

	Nine Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	39,237		$	15,764		$	6,030		$	9,734		$	5,798	$	1,001
NBCUniversal
Cable Networks	7,940			3,076			574			2,502			15		11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(b)	32			(542		)	292			(834		)	119		101
Eliminations(c)	(243		)	(1		)	—			(1		)	—		—
NBCUniversal	24,213			6,362			1,197			5,165			977		197
Corporate and Other(d)	679			(845		)	204			(1,049		)	64		42
Eliminations(c)	(1,518		)	30			—			30			—		—
Comcast Consolidated	$	62,611		$	21,311		$	7,431		$	13,880		$	6,839	$	1,240

	Nine Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	37,205		$	14,923		$	5,676	$	9,247		$	5,501	$	965
NBCUniversal
Cable Networks(e)	7,961			2,793			561		2,232			15		8
Broadcast Television(e)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(b)	10			(518		)	268		(786		)	217		103
Eliminations(c)	(256		)	—			—		—			—		—
NBCUniversal	23,142			5,457			1,324		4,133			991		181
Corporate and Other(d)	547			(668		)	62		(730		)	70		17
Eliminations(c)	(1,516		)	(55		)	—		(55		)	—		—
Comcast Consolidated	$	59,378		$	19,657		$	7,062	$	12,595		$	6,562	$	1,163

(a) For the three and nine months ended September 30, 2017 and 2016, Cable Communications segment revenue was derived from the following sources:

	Three Months Ended September 30				Nine Months Ended September 30
	2017		2016		2017		2016
Residential:
Video	44.1	%	44.5	%	44.3	%	44.9	%
High-speed Internet	28.1	%	27.1	%	28.0	%	27.0	%
Voice	6.4	%	7.0	%	6.5	%	7.2	%
Business services	11.9	%	11.1	%	11.7	%	10.9	%
Advertising	4.1	%	5.0	%	4.1	%	4.7	%
Other	5.4	%	5.3	%	5.4	%	5.3	%
Total	100.0	%	100.0	%	100.0	%	100.0	%

Subscription revenue received from residential customers who purchase bundled services at a discounted rate is allocated proportionally to each cable service based on the individual service’s price on a stand-alone basis.

For the three and nine months ended September 30, 2017, 2.7% and 2.8%, respectively, of Cable Communications segment revenue was derived from franchise and other regulatory fees. For both the three and nine months ended September 30, 2016, 2.8% of Cable Communications segment revenue was derived from franchise and other regulatory fees.

(b) NBCUniversal Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(c) Included in Eliminations are transactions that our segments enter into with one another. The most common types of transactions are the following:

• our Cable Networks segment generates revenue by selling programming to our Cable Communications segment, which represents a substantial majority of the revenue elimination amount

• our Broadcast Television segment generates revenue from the fees received under retransmission consent agreements with our Cable Communications segment

• our Cable Communications segment generates revenue by selling advertising and by selling the use of satellite feeds to our Cable Networks segment

• our Filmed Entertainment and Broadcast Television segments generate revenue from the licensing of film and television content to our Cable Networks segment

(d) Corporate and Other activities include costs associated with overhead and personnel, the costs of other business development initiatives, including our new wireless phone service, and the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses.

(e) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(f) No single customer accounted for a significant amount of revenue in any period.

(g) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to Comcast Corporation before net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of income). This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to Comcast Corporation, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	7,180		$	6,835		$	21,311		$	19,657
Adjustment for legal settlement	(250		)	—			(250		)	—
Depreciation	(1,991		)	(1,865		)	(5,876		)	(5,518		)
Amortization	(589		)	(530		)	(1,747		)	(1,544		)
Other operating gains	442			—			442			—
Other income (expense) items, net	(696		)	(716		)	(1,980		)	(1,978		)
Income before income taxes	$	4,096		$	3,724		$	11,900		$	10,617

(h) Other represents other operating gains in our condensed consolidated statement of income and a charge related to a legal settlement. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to NBCUniversal’s relinquishment of spectrum rights in our Broadcast Television segment and a pretax gain of $105 million related to the sale of a business in Corporate and Other. A charge related to a legal settlement of $250 million was recorded in other operating and administrative expenses in Corporate and Other and was excluded from Adjusted EBITDA for both the three and nine months ended September 30, 2017.

NBCUniversal Media LLC [Member]

Segment Reporting Information [Line Items]

Financial Data by Business Segment

Financial Data by Business Segment

We present our operations in four reportable business segments:

• Cable Networks:Consists primarily of our national cable networks, our regional sports and news networks, our international cable networks, and our cable television studio production operations.

• Broadcast Television:Consists primarily of the NBC and Telemundo broadcast networks, our NBC and Telemundo owned local broadcast television stations, the NBC Universo national cable network, and our broadcast television studio production operations.

• Filmed Entertainment:Consists primarily of the operations of Universal Pictures, which produces, acquires, markets and distributes filmed entertainment worldwide; our films are also produced under the Illumination, Focus Features and DreamWorks Animation names.

• Theme Parks:Consists primarily of our Universal theme parks in Orlando, Florida; Hollywood, California; and Osaka, Japan.

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to NBCUniversal below Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.

	Three Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	2,603		$	905		$	179		$	726		$	5	$	4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(a)	15			(122		)	97			(219		)	66		37
Eliminations(b)	(71		)	1			—			1			—		—
Total	$	8,014		$	2,274		$	169		$	2,105		$	354	$	69

	Three Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	2,942		$	893		$	184	$	709		$	7	$	4
Broadcast Television(c)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(a)	1			(183		)	91		(274		)	67		34
Eliminations(b)	(84		)	(1		)	—		(1		)	—		—
Total	$	9,178		$	2,146		$	445	$	1,701		$	336	$	67

	Nine Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	7,940		$	3,076		$	574		$	2,502		$	15	$	11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(a)	32			(542		)	292			(834		)	119		101
Eliminations(b)	(243		)	(1		)	—			(1		)	—		—
Total	$	24,213		$	6,362		$	1,197		$	5,165		$	977	$	197

	Nine Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	7,961		$	2,793		$	561	$	2,232		$	15	$	8
Broadcast Television(c)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(a)	10			(518		)	268		(786		)	217		103
Eliminations(b)	(256		)	—			—		—			—		—
Total	$	23,142		$	5,457		$	1,324	$	4,133		$	991	$	181

(a) Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(b) Included in Eliminations are transactions that our segments enter into with one another, which consist primarily of the licensing of film and television content from our Filmed Entertainment and Broadcast Television segments to our Cable Networks segment.

(c) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(d) No single customer accounted for a significant amount of revenue in any period.

(e) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to NBCUniversal before net (income) loss attributable to noncontrolling interests, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of income). This measure eliminates the significant level of noncash amortization expense that results from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to NBCUniversal, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	2,274		$	2,146		$	6,362		$	5,457
Depreciation	(253		)	(209		)	(749		)	(624		)
Amortization	(253		)	(236		)	(785		)	(700		)
Other operating gains	337			—			337			—
Other income (expense) items, net	(165		)	(195		)	(473		)	(398		)
Income before income taxes	$	1,940		$	1,506		$	4,692		$	3,735

(f) Other represents other operating gains in our condensed consolidated statement of income. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to our relinquishment of spectrum rights in our Broadcast Television segment.

XML

Condensed Consolidating Financial Information

9 Months Ended

Sep. 30, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Consolidating Financial Information

Condensed Consolidating Financial Information

Comcast (“Comcast Parent”), Comcast Cable Communications, LLC (“CCCL Parent”), and NBCUniversal (“NBCUniversal Media Parent”) have fully and unconditionally guaranteed each other’s debt securities, including the Comcast revolving credit facility.

Comcast Parent and CCCL Parent also fully and unconditionally guarantee NBCUniversal Enterprise’s $4.8 billion aggregate principal amount of senior notes, $1.5 billion revolving credit facility and commercial paper program. NBCUniversal Media Parent does not guarantee the NBCUniversal Enterprise senior notes, revolving credit facility or commercial paper program.

Comcast Parent provides an unconditional guarantee of the Universal Studios Japan ¥450 billion term loans with a final maturity of March 2022. Comcast Parent also provides an unconditional subordinated guarantee of the $185 million principal amount currently outstanding of Comcast Holdings’ ZONES due October 2029. Neither CCCL Parent nor NBCUniversal Media Parent guarantee the Comcast Holdings’ ZONES due October 2029. None of Comcast Parent, CCCL Parent nor NBCUniversal Media Parent guarantee the $62 million principal amount currently outstanding of Comcast Holdings’ ZONES due November 2029.

Condensed Consolidating Balance Sheet

September 30, 2017

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	260	$	3,854	$	—		$	4,114
Receivables, net	—		—		—		—		7,915		—			7,915
Programming rights	—		—		—		—		1,779		—			1,779
Other current assets	65		—		—		30		2,057		—			2,152
Total current assets	65		—		—		290		15,605		—			15,960
Film and television costs	—		—		—		—		6,796		—			6,796
Investments	132		11		79		691		5,782		—			6,695
Investments in and amounts due from subsidiaries eliminated upon consolidation	102,930		128,663		126,361		50,474		111,087		(519,515		)	—
Property and equipment, net	482		—		—		—		37,374		—			37,856
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		36,752		—			36,752
Other intangible assets, net	11		—		—		—		18,722		—			18,733
Other noncurrent assets, net	1,178		687		—		86		2,249		(1,055		)	3,145
Total assets	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	17	$	—	$	—	$	—	$	6,959	$	—		$	6,976
Accrued participations and residuals	—		—		—		—		1,811		—			1,811
Accrued expenses and other current liabilities	1,640		92		208		394		5,087		—			7,421
Current portion of long-term debt	2,913		—		—		4		2,324		—			5,241
Total current liabilities	4,570		92		208		398		16,181		—			21,449
Long-term debt, less current portion	42,237		139		2,100		8,204		7,040		—			59,720
Deferred income taxes	—		492		—		70		36,124		(1,084		)	35,602
Other noncurrent liabilities	2,564		—		—		1,138		7,183		29			10,914
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,353		—			1,353
Equity:
Common stock	55		—		—		—		—		—			55
Other shareholders’ equity	55,372		128,638		124,132		41,731		225,014		(519,515		)	55,372
Total Comcast Corporation shareholders’ equity	55,427		128,638		124,132		41,731		225,014		(519,515		)	55,427
Noncontrolling interests	—		—		—		—		836		—			836
Total equity	55,427		128,638		124,132		41,731		225,850		(519,515		)	56,263
Total liabilities and equity	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301

Condensed Consolidating Balance Sheet

December 31, 2016

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	482	$	2,819	$	—		$	3,301
Receivables, net	—		—		—		—		7,955		—			7,955
Programming rights	—		—		—		—		1,250		—			1,250
Other current assets	151		—		—		36		3,668		—			3,855
Total current assets	151		—		—		518		15,692		—			16,361
Film and television costs	—		—		—		—		7,252		—			7,252
Investments	75		—		—		651		4,521		—			5,247
Investments in and amounts due from subsidiaries eliminated upon consolidation	98,350		120,071		117,696		47,393		97,704		(481,214		)	—
Property and equipment, net	298		—		—		—		35,955		—			36,253
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		35,980		—			35,980
Other intangible assets, net	13		—		—		—		17,261		—			17,274
Other noncurrent assets, net	1,138		638		—		89		1,921		(1,017		)	2,769
Total assets	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	23	$	—	$	—	$	—	$	6,892	$	—		$	6,915
Accrued participations and residuals	—		—		—		—		1,726		—			1,726
Accrued expenses and other current liabilities	1,726		—		341		302		5,045		—			7,414
Current portion of long-term debt	3,739		—		550		4		1,187		—			5,480
Total current liabilities	5,488		—		891		306		14,850		—			21,535
Long-term debt, less current portion	38,123		141		2,100		8,208		6,994		—			55,566
Deferred income taxes	—		542		—		70		35,259		(1,017		)	34,854
Other noncurrent liabilities	2,471		—		—		1,166		7,288		—			10,925
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,446		—			1,446
Equity:
Common stock	56		—		—		—		—		—			56
Other shareholders’ equity	53,887		120,026		114,705		38,901		207,582		(481,214		)	53,887
Total Comcast Corporation shareholders’ equity	53,943		120,026		114,705		38,901		207,582		(481,214		)	53,943
Noncontrolling interests	—		—		—		—		2,231		—			2,231
Total equity	53,943		120,026		114,705		38,901		209,813		(481,214		)	56,174
Total liabilities and equity	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500

Condensed Consolidating Statement of Income

For theThree Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	20,983		$	—		$	20,983
Management fee revenue	285			—			280			—			—			(565		)	—
	285			—			280			—			20,983			(565		)	20,983
Costs and Expenses:
Programming and production	—			—			—			—			6,077			—			6,077
Other operating and administrative	183			—			280			277			6,248			(565		)	6,423
Advertising, marketing and promotion	—			—			—			—			1,553			—			1,553
Depreciation	7			—			—			—			1,984			—			1,991
Amortization	1			—			—			—			588			—			589
Other operating gains	—			—			—			—			(442		)	—			(442		)
	191			—			280			277			16,008			(565		)	16,191
Operating income (loss)	94			—			—			(277		)	4,975			—			4,792
Other Income (Expense):
Interest expense	(544		)	(3		)	(48		)	(116		)	(55		)	—			(766		)
Investment income (loss), net	(2		)	32			—			(9		)	61			—			82
Equity in net income (losses) of investees, net	2,944			2,483			1,992			2,221			1,786			(11,465		)	(39		)
Other income (expense), net	—			—			—			12			15			—			27
	2,398			2,512			1,944			2,108			1,807			(11,465		)	(696		)
Income (loss) before income taxes	2,492			2,512			1,944			1,831			6,782			(11,465		)	4,096
Income tax (expense) benefit	158			(10		)	17			(6		)	(1,572		)	—			(1,413		)
Net income (loss)	2,650			2,502			1,961			1,825			5,210			(11,465		)	2,683
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(33		)	—			(33		)
Net income (loss) attributable to Comcast Corporation	$	2,650		$	2,502		$	1,961		$	1,825		$	5,177		$	(11,465	)	$	2,650
Comprehensive income (loss) attributable to Comcast Corporation	$	2,603		$	2,486		$	1,965		$	1,740		$	5,049		$	(11,240	)	$	2,603

Condensed Consolidating Statement of Income

For the Three Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	21,319		$	—		$	21,319
Management fee revenue	268			—			263			—			—			(531		)	—
	268			—			263			—			21,319			(531		)	21,319
Costs and Expenses:
Programming and production	—			—			—			—			7,003			—			7,003
Other operating and administrative	194			—			263			222			5,848			(531		)	5,996
Advertising, marketing and promotion	—			—			—			—			1,485			—			1,485
Depreciation	7			—			—			—			1,858			—			1,865
Amortization	1			—			—			—			529			—			530
Other operating gains	—			—			—			—			—			—			—
	202			—			263			222			16,723			(531		)	16,879
Operating income (loss)	66			—			—			(222		)	4,596			—			4,440
Other Income (Expense):
Interest expense	(502		)	(3		)	(59		)	(113		)	(74		)	—			(751		)
Investment income (loss), net	3			(4		)	—			(12		)	93			—			80
Equity in net income (losses) of investees, net	2,519			2,385			2,134			1,644			1,255			(9,971		)	(34		)
Other income (expense), net	—			—			—			(2		)	(9		)	—			(11		)
	2,020			2,378			2,075			1,517			1,265			(9,971		)	(716		)
Income (loss) before income taxes	2,086			2,378			2,075			1,295			5,861			(9,971		)	3,724
Income tax (expense) benefit	151			2			21			(6		)	(1,568		)	—			(1,400		)
Net income (loss)	2,237			2,380			2,096			1,289			4,293			(9,971		)	2,324
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(87		)	—			(87		)
Net income (loss) attributable to Comcast Corporation	$	2,237		$	2,380		$	2,096		$	1,289		$	4,206		$	(9,971	)	$	2,237
Comprehensive income (loss) attributable to Comcast Corporation	$	2,270		$	2,388		$	2,096		$	1,310		$	4,235		$	(10,029	)	$	2,270

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	62,611		$	—		$	62,611
Management fee revenue	841			—			827			—			—			(1,668		)	—
	841			—			827			—			62,611			(1,668		)	62,611
Costs and Expenses:
Programming and production	—			—			—			—			18,492			—			18,492
Other operating and administrative	553			—			827			844			17,754			(1,668		)	18,310
Advertising, marketing and promotion	—			—			—			—			4,748			—			4,748
Depreciation	21			—			—			—			5,855			—			5,876
Amortization	4			—			—			—			1,743			—			1,747
Other operating gains	—			—			—			—			(442		)	—			(442		)
	578			—			827			844			48,150			(1,668		)	48,731
Operating income (loss)	263			—			—			(844		)	14,461			—			13,880
Other Income (Expense):
Interest expense	(1,592		)	(9		)	(159		)	(344		)	(175		)	—			(2,279		)
Investment income (loss), net	(1		)	84			—			(29		)	151			—			205
Equity in net income (losses) of investees, net	8,594			7,746			6,613			5,477			4,313			(32,731		)	12
Other income (expense), net	—			—			—			58			24			—			82
	7,001			7,821			6,454			5,162			4,313			(32,731		)	(1,980		)
Income (loss) before income taxes	7,264			7,821			6,454			4,318			18,774			(32,731		)	11,900
Income tax (expense) benefit	465			(26		)	56			(17		)	(4,513		)	—			(4,035		)
Net income (loss)	7,729			7,795			6,510			4,301			14,261			(32,731		)	7,865
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(136		)	—			(136		)
Net income (loss) attributable to Comcast Corporation	$	7,729		$	7,795		$	6,510		$	4,301		$	14,125		$	(32,731	)	$	7,729
Comprehensive income (loss) attributable to Comcast Corporation	$	7,818		$	7,793		$	6,516		$	4,266		$	13,998		$	(32,573	)	$	7,818

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	59,378		$	—		$	59,378
Management fee revenue	793			—			778			—			—			(1,571		)	—
	793			—			778			—			59,378			(1,571		)	59,378
Costs and Expenses:
Programming and production	—			—			—			—			17,926			—			17,926
Other operating and administrative	635			—			778			739			16,704			(1,571		)	17,285
Advertising, marketing and promotion	—			—			—			—			4,510			—			4,510
Depreciation	21			—			—			—			5,497			—			5,518
Amortization	4			—			—			—			1,540			—			1,544
Other operating gains	—			—			—			—			—			—			—
	660			—			778			739			46,177			(1,571		)	46,783
Operating income (loss)	133			—			—			(739		)	13,201			—			12,595
Other Income (Expense):
Interest expense	(1,431		)	(9		)	(179		)	(342		)	(225		)	—			(2,186		)
Investment income (loss), net	6			(3		)	—			(20		)	185			—			168
Equity in net income (losses) of investees, net	7,239			6,924			6,375			4,229			3,160			(27,991		)	(64		)
Other income (expense), net	—			—			—			115			(11		)	—			104
	5,814			6,912			6,196			3,982			3,109			(27,991		)	(1,978		)
Income (loss) before income taxes	5,947			6,912			6,196			3,243			16,310			(27,991		)	10,617
Income tax (expense) benefit	452			4			63			(19		)	(4,489		)	—			(3,989		)
Net income (loss)	6,399			6,916			6,259			3,224			11,821			(27,991		)	6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(229		)	—			(229		)
Net income (loss) attributable to Comcast Corporation	$	6,399		$	6,916		$	6,259		$	3,224		$	11,592		$	(27,991	)	$	6,399
Comprehensive income (loss) attributable to Comcast Corporation	$	6,607		$	7,015		$	6,261		$	3,552		$	12,134		$	(28,962	)	$	6,607

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(931	)	$	91		$	(233	)	$	(1,054	)	$	18,088		$	—	$	15,961
Investing Activities
Net transactions with affiliates	4,216			(91		)	818			833			(5,776		)	—		—
Capital expenditures	(6		)	—			—			—			(6,833		)	—		(6,839		)
Cash paid for intangible assets	(2		)	—			—			—			(1,238		)	—		(1,240		)
Acquisitions and construction of real estate properties	(190		)	—			—			—			(135		)	—		(325		)
Acquisitions, net of cash acquired	—			—			—			—			(429		)	—		(429		)
Proceeds from sales of investments	—			—			—			10			110			—		120
Purchases of investments	(56		)	—			(35		)	(57		)	(1,916		)	—		(2,064		)
Deposits	—			—			—			—			—			—		—
Other	101			—			—			49			600			—		750
Net cash provided by (used in) investing activities	4,063			(91		)	783			835			(15,617		)	—		(10,027		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(1,739		)	—			—			—			(1,068		)	—		(2,807		)
Proceeds from borrowings	5,997			—			—			—			5,463			—		11,460
Repurchases and repayments of debt	(1,000		)	—			(550		)	(3		)	(3,468		)	—		(5,021		)
Repurchases of common stock under repurchase program and employee plans	(4,212		)	—			—			—			—			—		(4,212		)
Dividends paid	(2,147		)	—			—			—			—			—		(2,147		)
Purchase of Universal Studios Japan noncontrolling interests	—			—			—			—			(2,299		)	—		(2,299		)
Issuances of common stock	—			—			—			—			—			—		—
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—			—			—			(198		)	—		(198		)
Other	(31		)	—			—			—			134			—		103
Net cash provided by (used in) financing activities	(3,132		)	—			(550		)	(3		)	(1,436		)	—		(5,121		)
Increase (decrease) in cash and cash equivalents	—			—			—			(222		)	1,035			—		813
Cash and cash equivalents, beginning of period	—			—			—			482			2,819			—		3,301
Cash and cash equivalents, end of period	$	—		$	—		$	—		$	260		$	3,854		$	—	$	4,114

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings		CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(637	)	$	—	$	(179	)	$	(1,068	)	$	15,873		$	—	$	13,989
Investing Activities
Net transactions with affiliates	(1,746		)	—		179			2,150			(583		)	—		—
Capital expenditures	(9		)	—		—			—			(6,553		)	—		(6,562		)
Cash paid for intangible assets	(4		)	—		—			—			(1,159		)	—		(1,163		)
Acquisitions and construction of real estate properties	(2		)	—		—			—			(301		)	—		(303		)
Acquisitions, net of cash acquired	—			—		—			—			(3,904		)	—		(3,904		)
Proceeds from sales of investments	—			—		—			104			84			—		188
Purchases of investments	(23		)	—		—			(9		)	(586		)	—		(618		)
Deposits	—			—		—			—			(1,748		)	—		(1,748		)
Other	(108		)	—		—			(35		)	101			—		(42		)
Net cash provided by (used in) investing activities	(1,892		)	—		179			2,210			(14,649		)	—		(14,152		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	105			—		—			—			505			—		610
Proceeds from borrowings	9,231			—		—			—			—			—		9,231
Repurchases and repayments of debt	(750		)	—		—			(1,005		)	(1,239		)	—		(2,994		)
Repurchases of common stock under repurchase program and employee plans	(4,061		)	—		—			—			—			—		(4,061		)
Dividends paid	(1,944		)	—		—			—			—			—		(1,944		)
Issuances of common stock	23			—		—			—			—			—		23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—		—			—			(194		)	—		(194		)
Other	(75		)	—		—			25			54			—		4
Net cash provided by (used in) financing activities	2,529			—		—			(980		)	(874		)	—		675
Increase (decrease) in cash and cash equivalents	—			—		—			162			350			—		512
Cash and cash equivalents, beginning of period	—			—		—			414			1,881			—		2,295
Cash and cash equivalents, end of period	$	—		$	—	$	—		$	576		$	2,231		$	—	$	2,807

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Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2017

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Basis of Presentation

We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. Upon adoption, we anticipate implementing certain changes in the presentation of revenue and expenses, including changes related to the allocation of revenue among the cable services included in a bundle that our residential customers purchase at a discount. We also expect that the new standard will impact the timing of recognition for (1) our Cable Communications segment’s installation revenue and commission expenses, which will be recognized as revenue and costs over a period of time instead of immediately, and (2) our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. In addition, the updated guidance requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to Comcast Corporation would have decreased for the three and nine months ended September 30, 2017 by $63 million and $47 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

Share-Based Compensation

In March 2016, the FASB updated the accounting guidance that affects several aspects of the accounting for share-based compensation. The most significant change for us relates to the presentation of the income and withholding tax consequences of share-based compensation in our consolidated financial statements. Among the changes, the updated guidance requires that the excess income tax benefits or deficiencies that arise when the tax consequences of share-based compensation differ from amounts previously recognized in the statement of income be recognized as income tax benefit or expense in the statement of income rather than as additional paid-in capital in the balance sheet. The guidance also states that excess income tax benefits should not be presented separately from other income taxes in the statement of cash flows and, thus, should be classified as an operating activity rather than a financing activity as they were under the prior guidance. In addition, the updated guidance requires that, when an employer withholds shares upon exercise of options or the vesting of restricted stock for the purpose of meeting withholding tax requirements, the cash paid for withholding taxes be classified as a financing activity and we include these amounts in the caption “repurchases of common stock under repurchase program and employee plans” in our consolidated statement of cash flows. We previously recorded these amounts as operating activities.

We adopted the updated guidance as of January 1, 2017 and, as required, we prospectively adopted the provisions that relate to the recognition of the excess income tax benefits or deficiencies in our condensed consolidated statement of income. The excess tax benefits resulted in a decrease to income tax expense of $49 million and $247 million for the three and nine months ended September 30, 2017, respectively. In addition, the excess tax benefits resulted in an increase to diluted earnings per common share attributable to Comcast Corporation shareholders of $0.01 and $0.04 for the three and nine months ended September 30, 2017, respectively. As required by the updated guidance, the prior year periods in our condensed consolidated statement of income were not adjusted as a result of these provisions.

In addition, we retrospectively adopted the provisions of this guidance related to changes to the statement of cash flows for all periods presented. This resulted in increases to net cash provided by operating activities and decreases to net cash provided by (used in) financing activities of $644 million and $492 million for the nine months ended September 30, 2017 and 2016, respectively.

NBCUniversal Media LLC [Member]

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Basis of Presentation

Unless indicated otherwise, throughout these notes to the condensed consolidated financial statements, we refer to NBCUniversal and its consolidated subsidiaries as “we,” “us” and “our.” We have prepared these unaudited condensed consolidated financial statements based on SEC rules that permit reduced disclosure for interim periods. These financial statements include all adjustments that are necessary for a fair presentation of our consolidated results of operations, financial condition and cash flows for the periods shown, including normal, recurring accruals and other items. The consolidated results of operations for the interim periods presented are not necessarily indicative of results for the full year.

The year-end condensed consolidated balance sheet was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles in the United States (“GAAP”). For a more complete discussion of our accounting policies and certain other information, refer to our consolidated financial statements included in our 2016 Annual Report on Form 10-K.

Recent Accounting Pronouncements

Revenue Recognition

In May 2014, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to revenue recognition. The updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue and by reducing the number of standards to which an entity has to refer. The updated accounting guidance is effective for us as of January 1, 2018.

We have substantially completed the review of our revenue arrangements and do not currently expect that the adoption of the new standard will have a material impact on our financial position or results of operations. However, we do expect that the new standard will impact the timing of recognition for our Cable Networks, Broadcast Television and Filmed Entertainment segments’ content licensing revenue associated with renewals or extensions of existing program licensing agreements, which will be recognized as revenue when the licensed content becomes available under the renewal or extension instead of when the agreement is renewed or extended. The updated guidance also requires additional disclosures regarding the nature, timing and uncertainty of our revenue transactions. We intend to adopt the provisions of the guidance using the full retrospective method, under which we will adjust any prior periods presented to reflect the updated guidance.

Financial Assets and Financial Liabilities

In January 2016, the FASB updated the accounting guidance related to the recognition and measurement of financial assets and financial liabilities. The updated accounting guidance, among other things, requires that all nonconsolidated equity investments, except those accounted for under the equity method, be measured at fair value and that the changes in fair value be recognized in net income. The updated guidance is effective for us as of January 1, 2018. The updated accounting guidance requires a cumulative effect adjustment to beginning retained earnings in the year the guidance is adopted with certain exceptions. If we had adopted the provisions of the updated guidance as of January 1, 2017 for our equity investments classified as available-for-sale securities, primarily our investment in Snap Inc. (see Note 6), net income attributable to NBCUniversal would have decreased for the three and nine months ended September 30, 2017 by $95 million and $234 million, respectively. We are currently in the process of determining the impact that the updated accounting guidance will have on our cost method investments.

Leases

In February 2016, the FASB updated the accounting guidance related to leases. The updated accounting guidance requires lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases with the exception of short-term leases. The asset and liability are initially measured based on the present value of committed lease payments. For a lessee, the recognition, measurement and presentation of expenses and cash flows arising from a lease do not significantly change from previous guidance. For a lessor, the accounting applied is also largely unchanged from previous guidance. The updated guidance is effective for us as of January 1, 2019 and early adoption is permitted. The updated accounting guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. We are currently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements.

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Computation of diluted EPS

Computation of Diluted EPS

	Three Months Ended September 30
	2017					2016
(in millions, except per share data)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	2,650	4,698	$	0.56	$	2,237	4,805	$	0.47
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			79					56
Diluted EPS attributable to Comcast Corporation shareholders	$	2,650	4,777	$	0.55	$	2,237	4,861	$	0.46

	Nine Months Ended September 30
	2017					2016
(in millions, except per share amounts)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to Comcast Corporation shareholders	$	7,729	4,725	$	1.64	$	6,399	4,837	$	1.32
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans			81					56
Diluted EPS attributable to Comcast Corporation shareholders	$	7,729	4,806	$	1.61	$	6,399	4,893	$	1.31

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Significant Transactions (Tables) - DreamWorks Animation [Member]

9 Months Ended

Sep. 30, 2017

Business Acquisition [Line Items]

Schedule of Business Acquisitions, by Acquisition

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement	(146		)
Deferred income taxes	291
Other noncurrent assets and liabilities	170
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

NBCUniversal Media LLC [Member]

Business Acquisition [Line Items]

Schedule of Business Acquisitions, by Acquisition

The table below presents the allocation of the purchase price to the assets and liabilities of DreamWorks Animation.

Allocation of Purchase Price
(in millions)
Film and television costs	$	838
Intangible assets	396
Working capital	156
Debt	(381		)
Tax receivable agreement(a)	(146		)
Other noncurrent assets and liabilities and other(b)	461
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337		)
Goodwill	2,786
Cash consideration transferred	$	3,773

(a) The tax receivable agreement was settled immediately following the acquisition and the payment was recorded as an operating activity in our condensed consolidated statement of cash flows in the third quarter of 2016. Comcast made a separate cash capital contribution of $146 million to fund the settlement which was recorded as a financing activity in our condensed consolidated statement of cash flows in the third quarter of 2016.

(b) Other included $279 million recorded to member’s capital that represented deferred income tax assets and other tax-related items recorded by Comcast but excluded from the net assets contributed to us.

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Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2017

NBCUniversal Media LLC [Member]

Related Party Transaction [Line Items]

Related Party Transactions Condensed Financial Statements

The following tables present transactions with Comcast and its consolidated subsidiaries that are included in our condensed consolidated financial statements.

Condensed Consolidated Balance Sheet

(in millions)	September 30, 2017		December 31, 2016
Transactions with Comcast and Consolidated Subsidiaries
Receivables, net	$	327	$	285
Accounts payable and accrued expenses related to trade creditors	$	33	$	55
Accrued expenses and other current liabilities	$	39	$	4
Note payable to Comcast	$	1,805	$	2,703
Other noncurrent liabilities	$	389	$	389

Condensed Consolidated Statement of Income

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Transactions with Comcast and Consolidated Subsidiaries
Revenue	$	463		$	522		$	1,382		$	1,335
Operating costs and expenses	$	(38	)	$	(53	)	$	(148	)	$	(157	)
Other income (expense)	$	(20	)	$	(18	)	$	(67	)	$	(48	)

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Film and Television Costs (Tables)

9 Months Ended

Sep. 30, 2017

Film And Television Cost [Line Items]

Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,901		2,586
	8,575		8,502
Less: Current portion of programming rights	1,779		1,250
Film and television costs	$	6,796	$	7,252

NBCUniversal Media LLC [Member]

Film And Television Cost [Line Items]

Film and Television Costs

(in millions)	September 30, 2017		December 31, 2016
Film Costs:
Released, less amortization	$	1,747	$	1,750
Completed, not released	198		50
In production and in development	829		1,310
	2,774		3,110
Television Costs:
Released, less amortization	2,047		1,953
In production and in development	853		853
	2,900		2,806
Programming rights, less amortization	2,889		2,570
	8,563		8,486
Less: Current portion of programming rights	1,772		1,241
Film and television costs	$	6,791	$	7,245

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Investments (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value, Equity And Cost Method Investments [Line Items]

Investment Summary

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	164		198
	591		198
Equity Method:
Atairos	2,225		1,601
Hulu	255		225
Other	871		550
	3,351		2,376
Cost Method:
AirTouch	1,610		1,599
BuzzFeed	400		400
Other	756		771
	2,766		2,770
Total investments	6,708		5,344
Less: Current investments	13		97
Noncurrent investments	$	6,695	$	5,247

Investment Income (Loss), Net

Investment Income (Loss), Net

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Gains (losses) on sales and exchanges of investments, net	$	10		$	24		$	9		$	39
Investment impairment losses	(3		)	(7		)	(9		)	(28		)
Interest and dividend income	36			31			101			91
Other, net	39			32			104			66
Investment income (loss), net	$	82		$	80		$	205		$	168

NBCUniversal Media LLC [Member]

Fair Value, Equity And Cost Method Investments [Line Items]

Investment Summary

(in millions)	September 30, 2017		December 31, 2016
Fair Value Method:
Snap	$	427	$	—
Other	4		6
	431		6
Equity Method:
Hulu	255		225
Other	432		336
	687		561
Cost Method:
BuzzFeed	400		400
Other	299		296
	699		696
Total investments	$	1,817	$	1,263

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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of recognized share-based compensation expense

Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	99	$	77	$	284	$	236
Stock options	52		48		155		133
Employee stock purchase plans	8		6		25		22
Total	$	159	$	131	$	464	$	391

NBCUniversal Media LLC [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of recognized share-based compensation expense

Recognized Share-Based Compensation Expense

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Restricted share units	$	32	$	19	$	86	$	64
Stock options	3		3		10		7
Employee stock purchase plans	3		1		7		6
Total	$	38	$	23	$	103	$	77

XML

Supplemental Financial Information (Tables)

9 Months Ended

Sep. 30, 2017

Supplemental Financial Information [Line Items]

Schedule of receivables, net

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	8,549	$	8,622
Less: Allowance for returns and customer incentives	357		417
Less: Allowance for doubtful accounts	277		250
Receivables, net	$	7,915	$	7,955

Schedule of accumulated other comprehensive income (loss)

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(43	)	$	2
Deferred gains (losses) on cash flow hedges	(12		)	(52		)
Unrecognized gains (losses) on employee benefit obligations	270			8
Cumulative translation adjustments	166			76
Accumulated other comprehensive income (loss), net of deferred taxes	$	381		$	34

Schedule of adjustments to reconcile net income to net cash provided by operating activities

Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	7,865		$	6,628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	7,181			7,062
Share-based compensation	594			495
Noncash interest expense (income), net	187			172
Equity in net (income) losses of investees, net	(12		)	64
Cash received from investees	72			58
Net (gain) loss on investment activity and other	(193		)	(159		)
Deferred income taxes	678			985
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	28			(315		)
Film and television costs, net	(71		)	(593		)
Accounts payable and accrued expenses related to trade creditors	(17		)	46
Other operating assets and liabilities	(351		)	(454		)
Net cash provided by operating activities	$	15,961		$	13,989

Schedule of cash payments for interest and income taxes

Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	905	$	808	$	2,277	$	2,043
Income taxes	$	1,206	$	1,031	$	3,415	$	2,716

NBCUniversal Media LLC [Member]

Supplemental Financial Information [Line Items]

Schedule of receivables, net

Receivables

(in millions)	September 30, 2017		December 31, 2016
Receivables, gross	$	6,610	$	6,799
Less: Allowance for returns and customer incentives	352		413
Less: Allowance for doubtful accounts	81		84
Receivables, net	$	6,177	$	6,302

Schedule of accumulated other comprehensive income (loss)

Accumulated Other Comprehensive Income (Loss)

(in millions)	September 30, 2017			September 30, 2016
Unrealized gains (losses) on marketable securities	$	(233	)	$	—
Deferred gains (losses) on cash flow hedges	(4		)	(8		)
Unrecognized gains (losses) on employee benefit obligations	115			3
Cumulative translation adjustments	93			121
Accumulated other comprehensive income (loss)	$	(29	)	$	116

Schedule of adjustments to reconcile net income to net cash provided by operating activities

Net Cash Provided by Operating Activities

	Nine Months Ended September 30
(in millions)	2017			2016
Net income	$	4,403		$	3,424
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	1,197			1,324
Equity in net (income) losses of investees, net	107			55
Cash received from investees	63			45
Net (gain) loss on investment activity and other	(45		)	(72		)
Deferred income taxes	(6		)	139
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	152			(338		)
Film and television costs, net	(75		)	(600		)
Accounts payable and accrued expenses related to trade creditors	(270		)	(114		)
Other operating assets and liabilities	46			(524		)
Net cash provided by operating activities	$	5,572		$	3,339

Schedule of cash payments for interest and income taxes

Cash Payments for Interest and Income Taxes

	Three Months Ended September 30				Nine Months Ended September 30
(in millions)	2017		2016		2017		2016
Interest	$	53	$	69	$	340	$	354
Income taxes	$	64	$	33	$	213	$	155

XML

Financial Data by Business Segment (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting Information [Line Items]

Financial Data by Business Segment

We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation below Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.

	Three Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	13,203		$	5,246		$	2,049		$	3,197		$	2,061	$	322
NBCUniversal
Cable Networks	2,603			905			179			726			5		4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(b)	15			(122		)	97			(219		)	66		37
Eliminations(c)	(71		)	1			—			1			—		—
NBCUniversal	8,014			2,274			169			2,105			354		69
Corporate and Other(d)	266			(349		)	170			(519		)	19		13
Eliminations(c)	(500		)	9			—			9			—		—
Comcast Consolidated	$	20,983		$	7,180		$	2,388		$	4,792		$	2,434	$	404

	Three Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	12,557		$	4,986		$	1,929	$	3,057		$	2,044	$	352
NBCUniversal
Cable Networks(e)	2,942			893			184		709			7		4
Broadcast Television(e)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(b)	1			(183		)	91		(274		)	67		34
Eliminations(c)	(84		)	(1		)	—		(1		)	—		—
NBCUniversal	9,178			2,146			445		1,701			336		67
Corporate and Other(d)	168			(223		)	21		(244		)	26		7
Eliminations(c)	(584		)	(74		)	—		(74		)	—		—
Comcast Consolidated	$	21,319		$	6,835		$	2,395	$	4,440		$	2,406	$	426

	Nine Months Ended September 30, 2017
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other(h)			Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	39,237		$	15,764		$	6,030		$	9,734		$	5,798	$	1,001
NBCUniversal
Cable Networks	7,940			3,076			574			2,502			15		11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(b)	32			(542		)	292			(834		)	119		101
Eliminations(c)	(243		)	(1		)	—			(1		)	—		—
NBCUniversal	24,213			6,362			1,197			5,165			977		197
Corporate and Other(d)	679			(845		)	204			(1,049		)	64		42
Eliminations(c)	(1,518		)	30			—			30			—		—
Comcast Consolidated	$	62,611		$	21,311		$	7,431		$	13,880		$	6,839	$	1,240

	Nine Months Ended September 30, 2016
(in millions)	Revenue(f)			Adjusted EBITDA(g)			Depreciation, Amortization and Other		Operating Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Communications(a)	$	37,205		$	14,923		$	5,676	$	9,247		$	5,501	$	965
NBCUniversal
Cable Networks(e)	7,961			2,793			561		2,232			15		8
Broadcast Television(e)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(b)	10			(518		)	268		(786		)	217		103
Eliminations(c)	(256		)	—			—		—			—		—
NBCUniversal	23,142			5,457			1,324		4,133			991		181
Corporate and Other(d)	547			(668		)	62		(730		)	70		17
Eliminations(c)	(1,516		)	(55		)	—		(55		)	—		—
Comcast Consolidated	$	59,378		$	19,657		$	7,062	$	12,595		$	6,562	$	1,163

(a) For the three and nine months ended September 30, 2017 and 2016, Cable Communications segment revenue was derived from the following sources:

	Three Months Ended September 30				Nine Months Ended September 30
	2017		2016		2017		2016
Residential:
Video	44.1	%	44.5	%	44.3	%	44.9	%
High-speed Internet	28.1	%	27.1	%	28.0	%	27.0	%
Voice	6.4	%	7.0	%	6.5	%	7.2	%
Business services	11.9	%	11.1	%	11.7	%	10.9	%
Advertising	4.1	%	5.0	%	4.1	%	4.7	%
Other	5.4	%	5.3	%	5.4	%	5.3	%
Total	100.0	%	100.0	%	100.0	%	100.0	%

Subscription revenue received from residential customers who purchase bundled services at a discounted rate is allocated proportionally to each cable service based on the individual service’s price on a stand-alone basis.

For the three and nine months ended September 30, 2017, 2.7% and 2.8%, respectively, of Cable Communications segment revenue was derived from franchise and other regulatory fees. For both the three and nine months ended September 30, 2016, 2.8% of Cable Communications segment revenue was derived from franchise and other regulatory fees.

(b) NBCUniversal Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(c) Included in Eliminations are transactions that our segments enter into with one another. The most common types of transactions are the following:

• our Cable Networks segment generates revenue by selling programming to our Cable Communications segment, which represents a substantial majority of the revenue elimination amount

• our Broadcast Television segment generates revenue from the fees received under retransmission consent agreements with our Cable Communications segment

• our Cable Communications segment generates revenue by selling advertising and by selling the use of satellite feeds to our Cable Networks segment

• our Filmed Entertainment and Broadcast Television segments generate revenue from the licensing of film and television content to our Cable Networks segment

(d) Corporate and Other activities include costs associated with overhead and personnel, the costs of other business development initiatives, including our new wireless phone service, and the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania and operates arena management-related businesses.

(e) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(f) No single customer accounted for a significant amount of revenue in any period.

(g) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to Comcast Corporation before net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of income). This measure eliminates the significant level of noncash depreciation and amortization expense that results from the capital-intensive nature of certain of our businesses and from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to Comcast Corporation, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	7,180		$	6,835		$	21,311		$	19,657
Adjustment for legal settlement	(250		)	—			(250		)	—
Depreciation	(1,991		)	(1,865		)	(5,876		)	(5,518		)
Amortization	(589		)	(530		)	(1,747		)	(1,544		)
Other operating gains	442			—			442			—
Other income (expense) items, net	(696		)	(716		)	(1,980		)	(1,978		)
Income before income taxes	$	4,096		$	3,724		$	11,900		$	10,617

(h) Other represents other operating gains in our condensed consolidated statement of income and a charge related to a legal settlement. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to NBCUniversal’s relinquishment of spectrum rights in our Broadcast Television segment and a pretax gain of $105 million related to the sale of a business in Corporate and Other.

Cable Communications Segment Revenue Sources

For the three and nine months ended September 30, 2017 and 2016, Cable Communications segment revenue was derived from the following sources:

	Three Months Ended September 30				Nine Months Ended September 30
	2017		2016		2017		2016
Residential:
Video	44.1	%	44.5	%	44.3	%	44.9	%
High-speed Internet	28.1	%	27.1	%	28.0	%	27.0	%
Voice	6.4	%	7.0	%	6.5	%	7.2	%
Business services	11.9	%	11.1	%	11.7	%	10.9	%
Advertising	4.1	%	5.0	%	4.1	%	4.7	%
Other	5.4	%	5.3	%	5.4	%	5.3	%
Total	100.0	%	100.0	%	100.0	%	100.0	%

Reconciliation of Adjusted EBITDA from Segments to Consolidated

Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	7,180		$	6,835		$	21,311		$	19,657
Adjustment for legal settlement	(250		)	—			(250		)	—
Depreciation	(1,991		)	(1,865		)	(5,876		)	(5,518		)
Amortization	(589		)	(530		)	(1,747		)	(1,544		)
Other operating gains	442			—			442			—
Other income (expense) items, net	(696		)	(716		)	(1,980		)	(1,978		)
Income before income taxes	$	4,096		$	3,724		$	11,900		$	10,617

NBCUniversal Media LLC [Member]

Segment Reporting Information [Line Items]

Financial Data by Business Segment

Our financial data by business segment is presented in the tables below.

	Three Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	2,603		$	905		$	179		$	726		$	5	$	4
Broadcast Television	2,133			321			(305		)	626			66		4
Filmed Entertainment	1,784			394			32			362			18		6
Theme Parks	1,550			775			166			609			199		18
Headquarters and Other(a)	15			(122		)	97			(219		)	66		37
Eliminations(b)	(71		)	1			—			1			—		—
Total	$	8,014		$	2,274		$	169		$	2,105		$	354	$	69

	Three Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	2,942		$	893		$	184	$	709		$	7	$	4
Broadcast Television(c)	3,087			378			27		351			28		6
Filmed Entertainment	1,792			353			13		340			6		4
Theme Parks	1,440			706			130		576			228		19
Headquarters and Other(a)	1			(183		)	91		(274		)	67		34
Eliminations(b)	(84		)	(1		)	—		(1		)	—		—
Total	$	9,178		$	2,146		$	445	$	1,701		$	336	$	67

	Nine Months Ended September 30, 2017
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other(f)			Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks	$	7,940		$	3,076		$	574		$	2,502		$	15	$	11
Broadcast Television	6,582			1,059			(242		)	1,301			125		11
Filmed Entertainment	5,920			1,047			79			968			47		17
Theme Parks	3,982			1,723			494			1,229			671		57
Headquarters and Other(a)	32			(542		)	292			(834		)	119		101
Eliminations(b)	(243		)	(1		)	—			(1		)	—		—
Total	$	24,213		$	6,362		$	1,197		$	5,165		$	977	$	197

	Nine Months Ended September 30, 2016
(in millions)	Revenue(d)			Adjusted EBITDA(e)			Depreciation, Amortization and Other		Operating  Income (Loss)			Capital Expenditures		Cash Paid for Intangible Assets
Cable Networks(c)	$	7,961		$	2,793		$	561	$	2,232		$	15	$	8
Broadcast Television(c)	7,299			1,056			89		967			77		12
Filmed Entertainment	4,526			576			33		543			14		10
Theme Parks	3,602			1,550			373		1,177			668		48
Headquarters and Other(a)	10			(518		)	268		(786		)	217		103
Eliminations(b)	(256		)	—			—		—			—		—
Total	$	23,142		$	5,457		$	1,324	$	4,133		$	991	$	181

(a) Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.

(b) Included in Eliminations are transactions that our segments enter into with one another, which consist primarily of the licensing of film and television content from our Filmed Entertainment and Broadcast Television segments to our Cable Networks segment.

(c) The revenue and operating costs and expenses associated with our broadcast of the 2016 Rio Olympics were reported in our Cable Networks and Broadcast Television segments.

(d) No single customer accounted for a significant amount of revenue in any period.

(e) We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to NBCUniversal before net (income) loss attributable to noncontrolling interests, income tax expense, other income (expense) items, net, depreciation and amortization expense, and other operating gains, and excluding impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets, if any. From time to time we may exclude from Adjusted EBITDA the impact of events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Other income (expense) items, net include interest expense, investment income (loss), equity in net income (losses) of investees, and other income (expense), net (as stated in our condensed consolidated statement of income). This measure eliminates the significant level of noncash amortization expense that results from intangible assets recognized in business combinations. Additionally, it is unaffected by our capital and tax structures and by our investment activities. We use this measure to evaluate our consolidated operating performance and the operating performance of our operating segments and to allocate resources and capital to our operating segments. It is also a significant performance measure in our annual incentive compensation programs. We believe that this measure is useful to investors because it is one of the bases for comparing our operating performance with that of other companies in our industries, although our measure may not be directly comparable to similar measures used by other companies. This measure should not be considered a substitute for operating income (loss), net income (loss), net income (loss) attributable to NBCUniversal, net cash provided by operating activities, or other measures of performance or liquidity we have reported in accordance with GAAP. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	2,274		$	2,146		$	6,362		$	5,457
Depreciation	(253		)	(209		)	(749		)	(624		)
Amortization	(253		)	(236		)	(785		)	(700		)
Other operating gains	337			—			337			—
Other income (expense) items, net	(165		)	(195		)	(473		)	(398		)
Income before income taxes	$	1,940		$	1,506		$	4,692		$	3,735

(f) Other represents other operating gains in our condensed consolidated statement of income. For both the three and nine months ended September 30, 2017, other operating gains included a pretax gain of $337 million related to our relinquishment of spectrum rights in our Broadcast Television segment.

Reconciliation of Adjusted EBITDA from Segments to Consolidated

Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.

	Three Months Ended September 30						Nine Months Ended September 30
(in millions)	2017			2016			2017			2016
Adjusted EBITDA	$	2,274		$	2,146		$	6,362		$	5,457
Depreciation	(253		)	(209		)	(749		)	(624		)
Amortization	(253		)	(236		)	(785		)	(700		)
Other operating gains	337			—			337			—
Other income (expense) items, net	(165		)	(195		)	(473		)	(398		)
Income before income taxes	$	1,940		$	1,506		$	4,692		$	3,735

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Condensed Consolidating Financial Information (Tables)

9 Months Ended

Sep. 30, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Consolidating Balance Sheet

Condensed Consolidating Balance Sheet

September 30, 2017

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	260	$	3,854	$	—		$	4,114
Receivables, net	—		—		—		—		7,915		—			7,915
Programming rights	—		—		—		—		1,779		—			1,779
Other current assets	65		—		—		30		2,057		—			2,152
Total current assets	65		—		—		290		15,605		—			15,960
Film and television costs	—		—		—		—		6,796		—			6,796
Investments	132		11		79		691		5,782		—			6,695
Investments in and amounts due from subsidiaries eliminated upon consolidation	102,930		128,663		126,361		50,474		111,087		(519,515		)	—
Property and equipment, net	482		—		—		—		37,374		—			37,856
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		36,752		—			36,752
Other intangible assets, net	11		—		—		—		18,722		—			18,733
Other noncurrent assets, net	1,178		687		—		86		2,249		(1,055		)	3,145
Total assets	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	17	$	—	$	—	$	—	$	6,959	$	—		$	6,976
Accrued participations and residuals	—		—		—		—		1,811		—			1,811
Accrued expenses and other current liabilities	1,640		92		208		394		5,087		—			7,421
Current portion of long-term debt	2,913		—		—		4		2,324		—			5,241
Total current liabilities	4,570		92		208		398		16,181		—			21,449
Long-term debt, less current portion	42,237		139		2,100		8,204		7,040		—			59,720
Deferred income taxes	—		492		—		70		36,124		(1,084		)	35,602
Other noncurrent liabilities	2,564		—		—		1,138		7,183		29			10,914
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,353		—			1,353
Equity:
Common stock	55		—		—		—		—		—			55
Other shareholders’ equity	55,372		128,638		124,132		41,731		225,014		(519,515		)	55,372
Total Comcast Corporation shareholders’ equity	55,427		128,638		124,132		41,731		225,014		(519,515		)	55,427
Noncontrolling interests	—		—		—		—		836		—			836
Total equity	55,427		128,638		124,132		41,731		225,850		(519,515		)	56,263
Total liabilities and equity	$	104,798	$	129,361	$	126,440	$	51,541	$	293,731	$	(520,570	)	$	185,301

Condensed Consolidating Balance Sheet

December 31, 2016

(in millions)	Comcast Parent		Comcast Holdings		CCCL Parent		NBCUniversal Media Parent		Non- Guarantor Subsidiaries		Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Assets
Cash and cash equivalents	$	—	$	—	$	—	$	482	$	2,819	$	—		$	3,301
Receivables, net	—		—		—		—		7,955		—			7,955
Programming rights	—		—		—		—		1,250		—			1,250
Other current assets	151		—		—		36		3,668		—			3,855
Total current assets	151		—		—		518		15,692		—			16,361
Film and television costs	—		—		—		—		7,252		—			7,252
Investments	75		—		—		651		4,521		—			5,247
Investments in and amounts due from subsidiaries eliminated upon consolidation	98,350		120,071		117,696		47,393		97,704		(481,214		)	—
Property and equipment, net	298		—		—		—		35,955		—			36,253
Franchise rights	—		—		—		—		59,364		—			59,364
Goodwill	—		—		—		—		35,980		—			35,980
Other intangible assets, net	13		—		—		—		17,261		—			17,274
Other noncurrent assets, net	1,138		638		—		89		1,921		(1,017		)	2,769
Total assets	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	$	23	$	—	$	—	$	—	$	6,892	$	—		$	6,915
Accrued participations and residuals	—		—		—		—		1,726		—			1,726
Accrued expenses and other current liabilities	1,726		—		341		302		5,045		—			7,414
Current portion of long-term debt	3,739		—		550		4		1,187		—			5,480
Total current liabilities	5,488		—		891		306		14,850		—			21,535
Long-term debt, less current portion	38,123		141		2,100		8,208		6,994		—			55,566
Deferred income taxes	—		542		—		70		35,259		(1,017		)	34,854
Other noncurrent liabilities	2,471		—		—		1,166		7,288		—			10,925
Redeemable noncontrolling interests and redeemable subsidiary preferred stock	—		—		—		—		1,446		—			1,446
Equity:
Common stock	56		—		—		—		—		—			56
Other shareholders’ equity	53,887		120,026		114,705		38,901		207,582		(481,214		)	53,887
Total Comcast Corporation shareholders’ equity	53,943		120,026		114,705		38,901		207,582		(481,214		)	53,943
Noncontrolling interests	—		—		—		—		2,231		—			2,231
Total equity	53,943		120,026		114,705		38,901		209,813		(481,214		)	56,174
Total liabilities and equity	$	100,025	$	120,709	$	117,696	$	48,651	$	275,650	$	(482,231	)	$	180,500

Condensed Consolidating Statement of Income

Condensed Consolidating Statement of Income

For theThree Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	20,983		$	—		$	20,983
Management fee revenue	285			—			280			—			—			(565		)	—
	285			—			280			—			20,983			(565		)	20,983
Costs and Expenses:
Programming and production	—			—			—			—			6,077			—			6,077
Other operating and administrative	183			—			280			277			6,248			(565		)	6,423
Advertising, marketing and promotion	—			—			—			—			1,553			—			1,553
Depreciation	7			—			—			—			1,984			—			1,991
Amortization	1			—			—			—			588			—			589
Other operating gains	—			—			—			—			(442		)	—			(442		)
	191			—			280			277			16,008			(565		)	16,191
Operating income (loss)	94			—			—			(277		)	4,975			—			4,792
Other Income (Expense):
Interest expense	(544		)	(3		)	(48		)	(116		)	(55		)	—			(766		)
Investment income (loss), net	(2		)	32			—			(9		)	61			—			82
Equity in net income (losses) of investees, net	2,944			2,483			1,992			2,221			1,786			(11,465		)	(39		)
Other income (expense), net	—			—			—			12			15			—			27
	2,398			2,512			1,944			2,108			1,807			(11,465		)	(696		)
Income (loss) before income taxes	2,492			2,512			1,944			1,831			6,782			(11,465		)	4,096
Income tax (expense) benefit	158			(10		)	17			(6		)	(1,572		)	—			(1,413		)
Net income (loss)	2,650			2,502			1,961			1,825			5,210			(11,465		)	2,683
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(33		)	—			(33		)
Net income (loss) attributable to Comcast Corporation	$	2,650		$	2,502		$	1,961		$	1,825		$	5,177		$	(11,465	)	$	2,650
Comprehensive income (loss) attributable to Comcast Corporation	$	2,603		$	2,486		$	1,965		$	1,740		$	5,049		$	(11,240	)	$	2,603

Condensed Consolidating Statement of Income

For the Three Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	21,319		$	—		$	21,319
Management fee revenue	268			—			263			—			—			(531		)	—
	268			—			263			—			21,319			(531		)	21,319
Costs and Expenses:
Programming and production	—			—			—			—			7,003			—			7,003
Other operating and administrative	194			—			263			222			5,848			(531		)	5,996
Advertising, marketing and promotion	—			—			—			—			1,485			—			1,485
Depreciation	7			—			—			—			1,858			—			1,865
Amortization	1			—			—			—			529			—			530
Other operating gains	—			—			—			—			—			—			—
	202			—			263			222			16,723			(531		)	16,879
Operating income (loss)	66			—			—			(222		)	4,596			—			4,440
Other Income (Expense):
Interest expense	(502		)	(3		)	(59		)	(113		)	(74		)	—			(751		)
Investment income (loss), net	3			(4		)	—			(12		)	93			—			80
Equity in net income (losses) of investees, net	2,519			2,385			2,134			1,644			1,255			(9,971		)	(34		)
Other income (expense), net	—			—			—			(2		)	(9		)	—			(11		)
	2,020			2,378			2,075			1,517			1,265			(9,971		)	(716		)
Income (loss) before income taxes	2,086			2,378			2,075			1,295			5,861			(9,971		)	3,724
Income tax (expense) benefit	151			2			21			(6		)	(1,568		)	—			(1,400		)
Net income (loss)	2,237			2,380			2,096			1,289			4,293			(9,971		)	2,324
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(87		)	—			(87		)
Net income (loss) attributable to Comcast Corporation	$	2,237		$	2,380		$	2,096		$	1,289		$	4,206		$	(9,971	)	$	2,237
Comprehensive income (loss) attributable to Comcast Corporation	$	2,270		$	2,388		$	2,096		$	1,310		$	4,235		$	(10,029	)	$	2,270

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	62,611		$	—		$	62,611
Management fee revenue	841			—			827			—			—			(1,668		)	—
	841			—			827			—			62,611			(1,668		)	62,611
Costs and Expenses:
Programming and production	—			—			—			—			18,492			—			18,492
Other operating and administrative	553			—			827			844			17,754			(1,668		)	18,310
Advertising, marketing and promotion	—			—			—			—			4,748			—			4,748
Depreciation	21			—			—			—			5,855			—			5,876
Amortization	4			—			—			—			1,743			—			1,747
Other operating gains	—			—			—			—			(442		)	—			(442		)
	578			—			827			844			48,150			(1,668		)	48,731
Operating income (loss)	263			—			—			(844		)	14,461			—			13,880
Other Income (Expense):
Interest expense	(1,592		)	(9		)	(159		)	(344		)	(175		)	—			(2,279		)
Investment income (loss), net	(1		)	84			—			(29		)	151			—			205
Equity in net income (losses) of investees, net	8,594			7,746			6,613			5,477			4,313			(32,731		)	12
Other income (expense), net	—			—			—			58			24			—			82
	7,001			7,821			6,454			5,162			4,313			(32,731		)	(1,980		)
Income (loss) before income taxes	7,264			7,821			6,454			4,318			18,774			(32,731		)	11,900
Income tax (expense) benefit	465			(26		)	56			(17		)	(4,513		)	—			(4,035		)
Net income (loss)	7,729			7,795			6,510			4,301			14,261			(32,731		)	7,865
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(136		)	—			(136		)
Net income (loss) attributable to Comcast Corporation	$	7,729		$	7,795		$	6,510		$	4,301		$	14,125		$	(32,731	)	$	7,729
Comprehensive income (loss) attributable to Comcast Corporation	$	7,818		$	7,793		$	6,516		$	4,266		$	13,998		$	(32,573	)	$	7,818

Condensed Consolidating Statement of Income

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments			Consolidated Comcast Corporation
Revenue:
Service revenue	$	—		$	—		$	—		$	—		$	59,378		$	—		$	59,378
Management fee revenue	793			—			778			—			—			(1,571		)	—
	793			—			778			—			59,378			(1,571		)	59,378
Costs and Expenses:
Programming and production	—			—			—			—			17,926			—			17,926
Other operating and administrative	635			—			778			739			16,704			(1,571		)	17,285
Advertising, marketing and promotion	—			—			—			—			4,510			—			4,510
Depreciation	21			—			—			—			5,497			—			5,518
Amortization	4			—			—			—			1,540			—			1,544
Other operating gains	—			—			—			—			—			—			—
	660			—			778			739			46,177			(1,571		)	46,783
Operating income (loss)	133			—			—			(739		)	13,201			—			12,595
Other Income (Expense):
Interest expense	(1,431		)	(9		)	(179		)	(342		)	(225		)	—			(2,186		)
Investment income (loss), net	6			(3		)	—			(20		)	185			—			168
Equity in net income (losses) of investees, net	7,239			6,924			6,375			4,229			3,160			(27,991		)	(64		)
Other income (expense), net	—			—			—			115			(11		)	—			104
	5,814			6,912			6,196			3,982			3,109			(27,991		)	(1,978		)
Income (loss) before income taxes	5,947			6,912			6,196			3,243			16,310			(27,991		)	10,617
Income tax (expense) benefit	452			4			63			(19		)	(4,489		)	—			(3,989		)
Net income (loss)	6,399			6,916			6,259			3,224			11,821			(27,991		)	6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	—			—			—			—			(229		)	—			(229		)
Net income (loss) attributable to Comcast Corporation	$	6,399		$	6,916		$	6,259		$	3,224		$	11,592		$	(27,991	)	$	6,399
Comprehensive income (loss) attributable to Comcast Corporation	$	6,607		$	7,015		$	6,261		$	3,552		$	12,134		$	(28,962	)	$	6,607

Condensed Consolidating Statement of Cash Flows

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2017

(in millions)	Comcast Parent			Comcast Holdings			CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(931	)	$	91		$	(233	)	$	(1,054	)	$	18,088		$	—	$	15,961
Investing Activities
Net transactions with affiliates	4,216			(91		)	818			833			(5,776		)	—		—
Capital expenditures	(6		)	—			—			—			(6,833		)	—		(6,839		)
Cash paid for intangible assets	(2		)	—			—			—			(1,238		)	—		(1,240		)
Acquisitions and construction of real estate properties	(190		)	—			—			—			(135		)	—		(325		)
Acquisitions, net of cash acquired	—			—			—			—			(429		)	—		(429		)
Proceeds from sales of investments	—			—			—			10			110			—		120
Purchases of investments	(56		)	—			(35		)	(57		)	(1,916		)	—		(2,064		)
Deposits	—			—			—			—			—			—		—
Other	101			—			—			49			600			—		750
Net cash provided by (used in) investing activities	4,063			(91		)	783			835			(15,617		)	—		(10,027		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(1,739		)	—			—			—			(1,068		)	—		(2,807		)
Proceeds from borrowings	5,997			—			—			—			5,463			—		11,460
Repurchases and repayments of debt	(1,000		)	—			(550		)	(3		)	(3,468		)	—		(5,021		)
Repurchases of common stock under repurchase program and employee plans	(4,212		)	—			—			—			—			—		(4,212		)
Dividends paid	(2,147		)	—			—			—			—			—		(2,147		)
Purchase of Universal Studios Japan noncontrolling interests	—			—			—			—			(2,299		)	—		(2,299		)
Issuances of common stock	—			—			—			—			—			—		—
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—			—			—			(198		)	—		(198		)
Other	(31		)	—			—			—			134			—		103
Net cash provided by (used in) financing activities	(3,132		)	—			(550		)	(3		)	(1,436		)	—		(5,121		)
Increase (decrease) in cash and cash equivalents	—			—			—			(222		)	1,035			—		813
Cash and cash equivalents, beginning of period	—			—			—			482			2,819			—		3,301
Cash and cash equivalents, end of period	$	—		$	—		$	—		$	260		$	3,854		$	—	$	4,114

Condensed Consolidating Statement of Cash Flows

For the Nine Months Ended September 30, 2016

(in millions)	Comcast Parent			Comcast Holdings		CCCL Parent			NBCUniversal Media Parent			Non- Guarantor Subsidiaries			Elimination and Consolidation Adjustments		Consolidated Comcast Corporation
Net cash provided by (used in) operating activities	$	(637	)	$	—	$	(179	)	$	(1,068	)	$	15,873		$	—	$	13,989
Investing Activities
Net transactions with affiliates	(1,746		)	—		179			2,150			(583		)	—		—
Capital expenditures	(9		)	—		—			—			(6,553		)	—		(6,562		)
Cash paid for intangible assets	(4		)	—		—			—			(1,159		)	—		(1,163		)
Acquisitions and construction of real estate properties	(2		)	—		—			—			(301		)	—		(303		)
Acquisitions, net of cash acquired	—			—		—			—			(3,904		)	—		(3,904		)
Proceeds from sales of investments	—			—		—			104			84			—		188
Purchases of investments	(23		)	—		—			(9		)	(586		)	—		(618		)
Deposits	—			—		—			—			(1,748		)	—		(1,748		)
Other	(108		)	—		—			(35		)	101			—		(42		)
Net cash provided by (used in) investing activities	(1,892		)	—		179			2,210			(14,649		)	—		(14,152		)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	105			—		—			—			505			—		610
Proceeds from borrowings	9,231			—		—			—			—			—		9,231
Repurchases and repayments of debt	(750		)	—		—			(1,005		)	(1,239		)	—		(2,994		)
Repurchases of common stock under repurchase program and employee plans	(4,061		)	—		—			—			—			—		(4,061		)
Dividends paid	(1,944		)	—		—			—			—			—		(1,944		)
Issuances of common stock	23			—		—			—			—			—		23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	—			—		—			—			(194		)	—		(194		)
Other	(75		)	—		—			25			54			—		4
Net cash provided by (used in) financing activities	2,529			—		—			(980		)	(874		)	—		675
Increase (decrease) in cash and cash equivalents	—			—		—			162			350			—		512
Cash and cash equivalents, beginning of period	—			—		—			414			1,881			—		2,295
Cash and cash equivalents, end of period	$	—		$	—	$	—		$	576		$	2,231		$	—	$	2,807

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Condensed Consolidated Financial Statements (Details)	Jan. 24, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Stock split, conversion ratio	2

XML

Recent Accounting Pronouncements (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net cash provided by operating activities		$ 15,961	$ 13,989
Net cash provided by (used in) financing activities		(5,121)	675
NBCUniversal Media LLC [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net cash provided by operating activities		5,572	3,339
Net cash provided by (used in) financing activities		(4,498)	(1,403)
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New accounting pronouncement impact on net income if adopted	$ (63)	(47)
Accounting Standards Update 2016-01 [Member] | NBCUniversal Media LLC [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New accounting pronouncement impact on net income if adopted	(95)	(234)
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in income tax expense	$ 49	$ 247
Increase in diluted earnings per share (in dollars per share)	$ 0.01	$ 0.04
Net cash provided by operating activities		$ 644	492
Net cash provided by (used in) financing activities		$ (644)	$ (492)

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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net Income Attributable to Comcast Corporation	$ 2,650	$ 2,237	$ 7,729	$ 6,399
Basic EPS attributable to Comcast Corporation shareholders (in shares)	4,698	4,805	4,725	4,837
Basic earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.56	$ 0.47	$ 1.64	$ 1.32
Effect of dilutive securities:
Net Income Attributable to Comcast Corporation	$ 2,650	$ 2,237	$ 7,729	$ 6,399
Assumed exercise or issuance of shares relating to stock plans (in shares)	79	56	81	56
Diluted EPS attributable to Comcast Corporation shareholders (in shares)	4,777	4,861	4,806	4,893
Diluted earnings per common share attributable to Comcast Corporation shareholders (in dollars per share)	$ 0.55	$ 0.46	$ 1.61	$ 1.31

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Significant Transactions (FCC Spectrum Auction) (Details) - FCC Spectrum [Member] - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017
FCC Spectrum Auction [Line Items]
Proceeds from FCC spectrum auction	$ 482
Gain on sale of spectrum rights		$ 337		$ 337
Amount of spectrum acquired		1,700		1,700
Deposit to acquire intangible asset			$ 1,800
NBCUniversal Media LLC [Member]
FCC Spectrum Auction [Line Items]
Proceeds from FCC spectrum auction	$ 482
Gain on sale of spectrum rights		$ 337		$ 337

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Significant Transaction (Universal Studios Japan) (Details) - USD ($) $ in Millions		9 Months Ended
	Apr. 06, 2017	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Payments to acquire additional interest in noncontrolling interest		$ 2,299	$ 0
NBCUniversal Media LLC [Member]
Business Acquisition [Line Items]
Payments to acquire additional interest in noncontrolling interest		$ 2,299	$ 0
Universal Studios Japan [Member]
Business Acquisition [Line Items]
Payments to acquire additional interest in noncontrolling interest	$ 2,300
Universal Studios Japan [Member] | NBCUniversal Media LLC [Member]
Business Acquisition [Line Items]
Payments to acquire additional interest in noncontrolling interest	$ 2,300

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Significant Transactions (DreamWorks Animation) (Details) - DreamWorks Animation [Member] $ / shares in Units, $ in Millions	Aug. 22, 2016 USD ($) $ / shares
Business Acquisition [Line Items]
Cash consideration transferred	$ 3,773
Business acquisition, price paid per share (in dollars per share) | $ / shares	$ 41
NBCUniversal Media LLC [Member]
Business Acquisition [Line Items]
Cash consideration transferred	$ 3,773
Consideration Transferred By Comcast [Member] | NBCUniversal Media LLC [Member]
Business Acquisition [Line Items]
Cash consideration transferred	$ 3,800
Business acquisition, price paid per share (in dollars per share) | $ / shares	$ 41

XML

Significant Transactions (Allocation of Purchase Price) (Details) - USD ($) $ in Millions		9 Months Ended
	Aug. 22, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Allocation of Purchase Price
Goodwill		$ 36,752		$ 35,980
NBCUniversal Media LLC [Member]
Allocation of Purchase Price
Goodwill		23,963		$ 23,323
Contribution from member		$ 662	$ 3,647
DreamWorks Animation [Member]
Allocation of Purchase Price
Film and television costs	$ 838
Intangible assets	396
Working capital	156
Debt	(381)
Tax receivable agreement	(146)
Deferred income taxes	291
Other noncurrent assets and liabilities	170
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337)
Goodwill	2,786
Cash consideration transferred	3,773
DreamWorks Animation [Member] | NBCUniversal Media LLC [Member]
Allocation of Purchase Price
Film and television costs	838
Intangible assets	396
Working capital	156
Debt	(381)
Tax receivable agreement	(146)
Other noncurrent assets and liabilities	461
Identifiable net assets (liabilities) acquired	1,324
Noncontrolling interests	(337)
Goodwill	2,786
Cash consideration transferred	3,773
DreamWorks Animation [Member] | Member's contribution that represented Deferred Income Tax Assets and Other Tax-related Items recorded by Parent but excluded from net assets contributed [Member] | NBCUniversal Media LLC [Member]
Allocation of Purchase Price
Contribution from member	279
Tax Receivable Agreement [Member] | DreamWorks Animation [Member] | NBCUniversal Media LLC [Member]
Allocation of Purchase Price
Contribution from member	$ 146

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Related Party Transactions (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Other noncurrent liabilities	$ 10,914	$ 10,925
NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Other noncurrent liabilities	4,099	$ 4,130
Carrying Value of Related Party Contractual Obligation [Member] | NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Other noncurrent liabilities	$ 383

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Related Party Transactions (Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Receivables, net	$ 7,915	$ 7,955
Accounts payable and accrued expenses related to trade creditors	6,976	6,915
Accrued expenses and other current liabilities	5,849	6,282
Other noncurrent liabilities	10,914	10,925
NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Receivables, net	6,177	6,302
Accounts payable and accrued expenses related to trade creditors	1,449	1,647
Accrued expenses and other current liabilities	1,807	1,888
Note payable to Comcast	1,805	2,703
Other noncurrent liabilities	4,099	4,130
Comcast and Consolidated Subsidiaries [Member] | NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Receivables, net	327	285
Accounts payable and accrued expenses related to trade creditors	33	55
Accrued expenses and other current liabilities	39	4
Note payable to Comcast	1,805	2,703
Other noncurrent liabilities	$ 389	$ 389

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Related Party Transactions (Condensed Consolidated Statement of Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Related Party Transaction [Line Items]
Revenue	$ 20,983	$ 21,319	$ 62,611	$ 59,378
Operating costs and expenses	(16,191)	(16,879)	(48,731)	(46,783)
NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Revenue	8,014	9,178	24,213	23,142
Operating costs and expenses	(5,909)	(7,477)	(19,048)	(19,009)
Comcast and Consolidated Subsidiaries [Member] | NBCUniversal Media LLC [Member]
Related Party Transaction [Line Items]
Revenue	463	522	1,382	1,335
Operating costs and expenses	(38)	(53)	(148)	(157)
Other income (expense)	$ (20)	$ (18)	$ (67)	$ (48)

XML

Film and Television Costs (Film and Television Costs)(Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Film Costs:
Released, less amortization	$ 1,747	$ 1,750
Completed, not released	198	50
In production and in development	829	1,310
Total film costs	2,774	3,110
Television Costs:
Released, less amortization	2,047	1,953
In production and in development	853	853
Total television costs	2,900	2,806
Programming rights, less amortization	2,901	2,586
Total film costs, television costs and programming rights	8,575	8,502
Less: Current portion of programming rights	1,779	1,250
Film and television costs	6,796	7,252
NBCUniversal Media LLC [Member]
Film Costs:
Released, less amortization	1,747	1,750
Completed, not released	198	50
In production and in development	829	1,310
Total film costs	2,774	3,110
Television Costs:
Released, less amortization	2,047	1,953
In production and in development	853	853
Total television costs	2,900	2,806
Programming rights, less amortization	2,889	2,570
Total film costs, television costs and programming rights	8,563	8,486
Less: Current portion of programming rights	1,772	1,241
Film and television costs	$ 6,791	$ 7,245

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Investments (Schedule of Investments) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	$ 591	$ 198
Equity method	3,351	2,376
Cost method	2,766	2,770
Total Investments	6,708	5,344
Less: Current investments	13	97
Noncurrent Investments	6,695	5,247
Snap [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	427	0
Other Fair Value Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	164	198
Atairos [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Equity method	2,225	1,601
Hulu [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Equity method	255	225
Other Equity Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Equity method	871	550
AirTouch [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Cost method	1,610	1,599
BuzzFeed [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Cost method	400	400
Other Cost Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Cost method	756	771
NBCUniversal Media LLC [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	431	6
Equity method	687	561
Cost method	699	696
Total Investments	1,817	1,263
Noncurrent Investments	1,817	1,263
NBCUniversal Media LLC [Member] | Snap [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	427	0
NBCUniversal Media LLC [Member] | Other Fair Value Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Fair value method	4	6
NBCUniversal Media LLC [Member] | Hulu [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Equity method	255	225
NBCUniversal Media LLC [Member] | Other Equity Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Equity method	432	336
NBCUniversal Media LLC [Member] | BuzzFeed [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Cost method	400	400
NBCUniversal Media LLC [Member] | Other Cost Method Investments [Member]
Fair Value, Equity And Cost Method Investments [Line Items]
Cost method	$ 299	$ 296

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Investments (Investment Income (Loss), Net) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investments [Abstract]
Gains (losses) on sales and exchanges of investments, net	$ 10	$ 24	$ 9	$ 39
Investment impairment losses	(3)	(7)	(9)	(28)
Interest and dividend income	36	31	101	91
Other, net	39	32	104	66
Investment income (loss), net	$ 82	$ 80	$ 205	$ 168

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Investments (Fair Value Method Investments) (Details) - USD ($) $ in Millions		1 Months Ended	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
NBCUniversal Media LLC [Member]
Schedule of Fair Value Method Investments [Line Items]
Contributed investment from Comcast			$ 662	$ 3,647
Snap [Member]
Schedule of Fair Value Method Investments [Line Items]
Payments to acquire available-for-sale securities		$ 500
Snap [Member] | NBCUniversal Media LLC [Member]
Schedule of Fair Value Method Investments [Line Items]
Contributed investment from Comcast	$ 662

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Investments (Equity Method Investments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Equity in net income (losses) of investees	$ (39)	$ (34)	$ 12	$ (64)
Pretax gain, sale of business	105		105
Atairos [Member]
Schedule of Equity Method Investments [Line Items]
Purchases of investments			994
Equity in net income (losses) of investees	7	(9)	106	(36)
Pretax gain, sale of business	105
The Weather Channel [Member]
Schedule of Equity Method Investments [Line Items]
Gain on sale of The Weather Channel product and technology businesses				108
NBCUniversal Media LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity in net income (losses) of investees	$ (52)	$ (34)	$ (107)	(55)
NBCUniversal Media LLC [Member] | The Weather Channel [Member]
Schedule of Equity Method Investments [Line Items]
Gain on sale of The Weather Channel product and technology businesses				$ 108

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Investments (Cost Method Investments) (Details) $ in Billions	9 Months Ended
	Sep. 30, 2017 USD ($) preferred_stock_series
AirTouch [Member] | Level 2 [Member]
Schedule of Cost-method Investments [Line Items]
Fair value of redeemable preferred shares	$ 1.8
AirTouch [Member]
Schedule of Cost-method Investments [Line Items]
Number of series of preferred stock | preferred_stock_series	2
AirTouch [Member] | Level 2 [Member]
Schedule of Cost-method Investments [Line Items]
Fair value of cost method investment redeemable preferred shares	$ 1.7

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Long-Term Debt (Narrative) (Details) ¥ in Billions, $ in Billions	9 Months Ended
	Sep. 30, 2017 USD ($)	May 31, 2017 JPY (¥)	May 31, 2017 USD ($)
Debt Instrument [Line Items]
Total debt	$ 65.0
Fair value of debt	71.7
NBCUniversal Media LLC [Member]
Debt Instrument [Line Items]
Total debt	12.4
Fair value of debt	13.5
Universal Studios Japan Term Loan Maturing March 2022 [Member]
Debt Instrument [Line Items]
Debt face amount		¥ 450	$ 3.9
Universal Studios Japan Term Loan Maturing March 2022 [Member] | NBCUniversal Media LLC [Member]
Debt Instrument [Line Items]
Debt face amount		¥ 450	$ 3.9
Former Universal Studios Japan Term Loans [Member]
Debt Instrument [Line Items]
Repayments of debt	3.3
Former Universal Studios Japan Term Loans [Member] | NBCUniversal Media LLC [Member]
Debt Instrument [Line Items]
Repayments of debt	$ 3.3

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Long-Term Debt (Debt Borrowings)(Details) - Senior Notes [Member] - USD ($) $ in Millions	Aug. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Jan. 31, 2017
Senior 3.15% Notes Due 2028 [Member]
Debt Instrument [Line Items]
Debt face amount	$ 1,650
Interest rate	3.15%
Senior 4.00% Notes Due 2047 [Member]
Debt Instrument [Line Items]
Debt face amount	$ 850
Interest rate	4.00%
Floating Rate Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt face amount		$ 1,500
Senior 4.45% Notes Due 2047 [Member]
Debt Instrument [Line Items]
Debt face amount			$ 1,005
Interest rate			4.45%
Senior 3.0% Notes Due 2024 [Member]
Debt Instrument [Line Items]
Debt face amount				$ 1,250
Interest rate				3.00%
Senior 3.3% Notes Due 2027 [Member]
Debt Instrument [Line Items]
Debt face amount				$ 1,250
Interest rate				3.30%

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Long-term Debt (Debt Repayments) (Details) - USD ($) $ in Millions	1 Months Ended		9 Months Ended
	May 31, 2017	Jan. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
Debt Instrument [Line Items]
Repurchases and repayments of debt			$ 5,021	$ 2,994
Senior Notes [Member] | Senior 8.875% Notes Due 2017 [Member]
Debt Instrument [Line Items]
Repurchases and repayments of debt	$ 550
Interest rate	8.875%
Senior Notes [Member] | Senior 6.50% Notes Due 2017 [Member]
Debt Instrument [Line Items]
Repurchases and repayments of debt		$ 1,000
Interest rate		6.50%

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Long-Term Debt (Revolving Credit Facilities) (Details) - Revolving Credit Facility [Member] $ in Billions	Sep. 30, 2017 USD ($)
Line of Credit Facility [Line Items]
Amounts available under revolving credit facilities	$ 8.3
NBCUniversal Enterprise [Member]
Line of Credit Facility [Line Items]
Amounts available under revolving credit facilities	$ 1.5

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Long-Term Debt (Commercial Paper Programs) (Details) - Commercial Paper [Member] - USD ($)	Sep. 30, 2017	Jun. 30, 2017
Short-term Debt [Line Items]
Maximum borrowing under commercial paper programs		$ 7,000,000,000
Commercial paper outstanding	$ 0
NBCUniversal Enterprise [Member]
Short-term Debt [Line Items]
Maximum borrowing under commercial paper programs		$ 1,500,000,000
Commercial paper outstanding	$ 0

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Long-Term Debt Long-term Debt (Cross-Guarantee Structure) (Details) - NBCUniversal Media LLC [Member] $ in Millions	Sep. 30, 2017 USD ($)
Debt Instrument [Line Items]
Ownership in cable holding company subsidiaries	100.00%
NBCUniversal Enterprise [Member]
Debt Instrument [Line Items]
Related party aggregate principal amount senior notes not subject to guarantee	$ 4,800
Related party credit facility not subject to guarantee	1,500
Related party liquidation preference preferred stock not subject to guarantee	725
Comcast and Comcast Cable Debt Securities [Member]
Debt Instrument [Line Items]
Principal amount of debt securities subject to guarantee	47,500
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Guarantee obligations, maximum capacity	$ 7,000

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Long-Term Debt (Senior Notes Exchange) (Details) - Subsequent Event [Member] - Senior Notes Exchange [Member] $ in Millions	1 Months Ended
	Oct. 31, 2017 USD ($)
Comcast New Senior 3.969% Notes Due 2047 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 2,000
Interest rate	3.969%
Comcast New Senior 3.999% Notes Due 2049 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 2,000
Interest rate	3.999%
Comcast New Senior 4.049% Notes Due 2052 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 1,500
Interest rate	4.049%
Comcast and NBCUniversal Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount of certain series of outstanding notes	$ 3,900
NBCUniversal Media LLC [Member] | Comcast New Senior 3.969% Notes Due 2047 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 2,000
Interest rate	3.969%
NBCUniversal Media LLC [Member] | Comcast New Senior 3.999% Notes Due 2049 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 2,000
Interest rate	3.999%
NBCUniversal Media LLC [Member] | Comcast New Senior 4.049% Notes Due 2052 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 1,500
Interest rate	4.049%
NBCUniversal Media LLC [Member] | Comcast and NBCUniversal Senior Notes [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount of certain series of outstanding notes	$ 3,900
NBCUniversal Media LLC [Member] | NBCUniversal Senior 6.400% Notes Due 2040 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate	6.40%
Aggregate principal amount of certain series of outstanding notes	$ 442
NBCUniversal Media LLC [Member] | NBCUniversal 3.999% Notes Due 2049 to Comcast [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued	$ 610
Interest rate	3.999%

XML

Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended
	Mar. 31, 2017	Sep. 30, 2017
Restricted share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized pretax compensation expense on nonvested awards		$ 886
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized pretax compensation expense on nonvested awards		$ 451
Management Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted (in shares)	39.1
Weighted average fair value of stock options granted (in dollars per share)	$ 7.01
Management Grant [Member] | Restricted share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted share units granted (in shares)	10.6
Weighted average fair value of restricted share units granted (in dollars per share)	$ 37.42

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Share-Based Compensation (Recognized Share-Based Compensation Expense) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	$ 159	$ 131	$ 464	$ 391
NBCUniversal Media LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	38	23	103	77
Restricted share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	99	77	284	236
Restricted share units [Member] | NBCUniversal Media LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	32	19	86	64
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	52	48	155	133
Stock options [Member] | NBCUniversal Media LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	3	3	10	7
Employee stock purchase plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	8	6	25	22
Employee stock purchase plans [Member] | NBCUniversal Media LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense	$ 3	$ 1	$ 7	$ 6

XML

Supplemental Financial Information (Receivables)(Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Supplemental Financial Information [Line Items]
Receivables, gross	$ 8,549	$ 8,622
Less: Allowance for returns and customer incentives	357	417
Less: Allowance for doubtful accounts	277	250
Receivables, net	7,915	7,955
NBCUniversal Media LLC [Member]
Supplemental Financial Information [Line Items]
Receivables, gross	6,610	6,799
Less: Allowance for returns and customer incentives	352	413
Less: Allowance for doubtful accounts	81	84
Receivables, net	$ 6,177	$ 6,302

XML

Supplemental Financial Information (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on marketable securities	$ (43)		$ 2
Deferred gains (losses) on cash flow hedges	(12)		(52)
Unrecognized gains (losses) on employee benefit obligations	270		8
Cumulative translation adjustments	166		76
Accumulated other comprehensive income (loss), net of deferred taxes	381	$ 98	34
NBCUniversal Media LLC [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on marketable securities	(233)		0
Deferred gains (losses) on cash flow hedges	(4)		(8)
Unrecognized gains (losses) on employee benefit obligations	115		3
Cumulative translation adjustments	93		121
Accumulated other comprehensive income (loss), net of deferred taxes	$ (29)	$ (135)	$ 116

XML

Supplemental Financial Information (Net Cash Provided by Operating Activities)(Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Supplemental Financial Information [Line Items]
Net income	$ 2,683	$ 2,324	$ 7,865	$ 6,628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains			7,181	7,062
Share-based compensation			594	495
Noncash interest expense (income), net			187	172
Equity in net (income) losses of investees, net	39	34	(12)	64
Cash received from investees			72	58
Net (gain) loss on investment activity and other			(193)	(159)
Deferred income taxes			678	985
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net			28	(315)
Film and television costs, net			(71)	(593)
Accounts payable and accrued expenses related to trade creditors			(17)	46
Other operating assets and liabilities			(351)	(454)
Net cash provided by operating activities			15,961	13,989
NBCUniversal Media LLC [Member]
Supplemental Financial Information [Line Items]
Net income	1,842	1,367	4,403	3,424
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains			1,197	1,324
Equity in net (income) losses of investees, net	$ 52	$ 34	107	55
Cash received from investees			63	45
Net (gain) loss on investment activity and other			(45)	(72)
Deferred income taxes			(6)	139
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net			152	(338)
Film and television costs, net			(75)	(600)
Accounts payable and accrued expenses related to trade creditors			(270)	(114)
Other operating assets and liabilities			46	(524)
Net cash provided by operating activities			$ 5,572	$ 3,339

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Supplemental Financial Information (Cash Payments for Interest and Income Taxes)(Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Cash Payments for Interest and Income Taxes
Interest	$ 905	$ 808	$ 2,277	$ 2,043
Income taxes	1,206	1,031	3,415	2,716
NBCUniversal Media LLC [Member]
Cash Payments for Interest and Income Taxes
Interest	53	69	340	354
Income taxes	$ 64	$ 33	$ 213	$ 155

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Supplemental Financial Information (Noncash Investing and Financing Activities)(Details) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($) $ / shares
Supplemental Financial Information [Line Items]
Capital expenditures incurred but not yet paid	$ 1,400
Dividends payable	$ 736
Dividends payable (in dollars per share) | $ / shares	$ 0.1575
NBCUniversal Media LLC [Member]
Supplemental Financial Information [Line Items]
Capital expenditures incurred but not yet paid	$ 296

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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loss Contingencies [Line Items]
Charge related to a legal settlement	$ 250	$ 0	$ 250	$ 0
Settled Litigation [Member] | Sprint Communications Company L.P. Lawsuit [Member]
Loss Contingencies [Line Items]
Charge related to a legal settlement	250
Redeemable Preferred Stock [Member] | Level 2 [Member]
Temporary Equity [Line Items]
Fair Value of Redeemable subsidiary preferred stock	$ 756		$ 756

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Financial Data by Business Segment (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			5
Financial Data by Business Segment
Revenue	$ 20,983	$ 21,319	$ 62,611	$ 59,378
Adjusted EBITDA	7,180	6,835	21,311	19,657
Depreciation, Amortization and Other	2,388	2,395	7,431	7,062
Operating income	4,792	4,440	13,880	12,595
Capital Expenditures	2,434	2,406	6,839	6,562
Cash Paid for Intangible Assets	404	426	1,240	1,163
Pretax gain, sale of business	105		105
Charge related to a legal settlement	250	0	$ 250	0
NBCUniversal Media LLC [Member]
Segment Reporting Information [Line Items]
Number of reportable segments | segment			4
Financial Data by Business Segment
Revenue	8,014	9,178	$ 24,213	23,142
Adjusted EBITDA	2,274	2,146	6,362	5,457
Depreciation, Amortization and Other	169	445	1,197	1,324
Operating income	2,105	1,701	5,165	4,133
Capital Expenditures	354	336	977	991
Cash Paid for Intangible Assets	69	$ 67	197	$ 181
FCC Spectrum [Member]
Financial Data by Business Segment
Gain on sale of spectrum rights	337		337
FCC Spectrum [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Gain on sale of spectrum rights	$ 337		$ 337
Cable Communications [Member] | Residential Video Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	44.10%	44.50%	44.30%	44.90%
Cable Communications [Member] | Residential High-speed Internet Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	28.10%	27.10%	28.00%	27.00%
Cable Communications [Member] | Residential Voice Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	6.40%	7.00%	6.50%	7.20%
Cable Communications [Member] | Business Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	11.90%	11.10%	11.70%	10.90%
Cable Communications [Member] | Advertising Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	4.10%	5.00%	4.10%	4.70%
Cable Communications [Member] | Other Products And Services [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	5.40%	5.30%	5.40%	5.30%
NBCUniversal Segments [Member]
Financial Data by Business Segment
Revenue	$ 8,014	$ 9,178	$ 24,213	$ 23,142
Adjusted EBITDA	2,274	2,146	6,362	5,457
Depreciation, Amortization and Other	169	445	1,197	1,324
Operating income	2,105	1,701	5,165	4,133
Capital Expenditures	354	336	977	991
Cash Paid for Intangible Assets	69	67	197	181
Operating Segments [Member] | Cable Communications [Member]
Financial Data by Business Segment
Revenue	13,203	12,557	39,237	37,205
Adjusted EBITDA	5,246	4,986	15,764	14,923
Depreciation, Amortization and Other	2,049	1,929	6,030	5,676
Operating income	3,197	3,057	9,734	9,247
Capital Expenditures	2,061	2,044	5,798	5,501
Cash Paid for Intangible Assets	$ 322	$ 352	$ 1,001	$ 965
Cable segment revenue types as percentage of total cable revenue	100.00%	100.00%	100.00%	100.00%
Operating Segments [Member] | Cable Communications [Member] | Franchise And Other Regulatory Fees [Member]
Financial Data by Business Segment
Cable segment revenue types as percentage of total cable revenue	2.70%	2.80%	2.80%	2.80%
Operating Segments [Member] | Cable Networks [Member]
Financial Data by Business Segment
Revenue	$ 2,603	$ 2,942	$ 7,940	$ 7,961
Adjusted EBITDA	905	893	3,076	2,793
Depreciation, Amortization and Other	179	184	574	561
Operating income	726	709	2,502	2,232
Capital Expenditures	5	7	15	15
Cash Paid for Intangible Assets	4	4	11	8
Operating Segments [Member] | Cable Networks [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	2,603	2,942	7,940	7,961
Adjusted EBITDA	905	893	3,076	2,793
Depreciation, Amortization and Other	179	184	574	561
Operating income	726	709	2,502	2,232
Capital Expenditures	5	7	15	15
Cash Paid for Intangible Assets	4	4	11	8
Operating Segments [Member] | Broadcast Television [Member]
Financial Data by Business Segment
Revenue	2,133	3,087	6,582	7,299
Adjusted EBITDA	321	378	1,059	1,056
Depreciation, Amortization and Other	(305)	27	(242)	89
Operating income	626	351	1,301	967
Capital Expenditures	66	28	125	77
Cash Paid for Intangible Assets	4	6	11	12
Operating Segments [Member] | Broadcast Television [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	2,133	3,087	6,582	7,299
Adjusted EBITDA	321	378	1,059	1,056
Depreciation, Amortization and Other	(305)	27	(242)	89
Operating income	626	351	1,301	967
Capital Expenditures	66	28	125	77
Cash Paid for Intangible Assets	4	6	11	12
Operating Segments [Member] | Filmed Entertainment [Member]
Financial Data by Business Segment
Revenue	1,784	1,792	5,920	4,526
Adjusted EBITDA	394	353	1,047	576
Depreciation, Amortization and Other	32	13	79	33
Operating income	362	340	968	543
Capital Expenditures	18	6	47	14
Cash Paid for Intangible Assets	6	4	17	10
Operating Segments [Member] | Filmed Entertainment [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	1,784	1,792	5,920	4,526
Adjusted EBITDA	394	353	1,047	576
Depreciation, Amortization and Other	32	13	79	33
Operating income	362	340	968	543
Capital Expenditures	18	6	47	14
Cash Paid for Intangible Assets	6	4	17	10
Operating Segments [Member] | Theme Parks [Member]
Financial Data by Business Segment
Revenue	1,550	1,440	3,982	3,602
Adjusted EBITDA	775	706	1,723	1,550
Depreciation, Amortization and Other	166	130	494	373
Operating income	609	576	1,229	1,177
Capital Expenditures	199	228	671	668
Cash Paid for Intangible Assets	18	19	57	48
Operating Segments [Member] | Theme Parks [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	1,550	1,440	3,982	3,602
Adjusted EBITDA	775	706	1,723	1,550
Depreciation, Amortization and Other	166	130	494	373
Operating income	609	576	1,229	1,177
Capital Expenditures	199	228	671	668
Cash Paid for Intangible Assets	18	19	57	48
Corporate, Non-Segment [Member]
Financial Data by Business Segment
Revenue	266	168	679	547
Adjusted EBITDA	(349)	(223)	(845)	(668)
Depreciation, Amortization and Other	170	21	204	62
Operating income	(519)	(244)	(1,049)	(730)
Capital Expenditures	19	26	64	70
Cash Paid for Intangible Assets	13	7	42	17
Corporate, Non-Segment [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	15	1	32	10
Adjusted EBITDA	(122)	(183)	(542)	(518)
Depreciation, Amortization and Other	97	91	292	268
Operating income	(219)	(274)	(834)	(786)
Capital Expenditures	66	67	119	217
Cash Paid for Intangible Assets	37	34	101	103
Corporate, Non-Segment [Member] | NBCUniversal Segments [Member]
Financial Data by Business Segment
Revenue	15	1	32	10
Adjusted EBITDA	(122)	(183)	(542)	(518)
Depreciation, Amortization and Other	97	91	292	268
Operating income	(219)	(274)	(834)	(786)
Capital Expenditures	66	67	119	217
Cash Paid for Intangible Assets	37	34	101	103
Eliminations [Member]
Financial Data by Business Segment
Revenue	(500)	(584)	(1,518)	(1,516)
Adjusted EBITDA	9	(74)	30	(55)
Depreciation, Amortization and Other	0	0	0	0
Operating income	9	(74)	30	(55)
Capital Expenditures	0	0	0	0
Cash Paid for Intangible Assets	0	0	0	0
Eliminations [Member] | NBCUniversal Media LLC [Member]
Financial Data by Business Segment
Revenue	(71)	(84)	(243)	(256)
Adjusted EBITDA	1	(1)	(1)	0
Depreciation, Amortization and Other	0	0	0	0
Operating income	1	(1)	(1)	0
Capital Expenditures	0	0	0	0
Cash Paid for Intangible Assets	0	0	0	0
Eliminations [Member] | NBCUniversal Segments [Member]
Financial Data by Business Segment
Revenue	(71)	(84)	(243)	(256)
Adjusted EBITDA	1	(1)	(1)	0
Depreciation, Amortization and Other	0	0	0	0
Operating income	1	(1)	(1)	0
Capital Expenditures	0	0	0	0
Cash Paid for Intangible Assets	$ 0	$ 0	$ 0	$ 0

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Financial Data by Business Segment (Reconciliation of Adjusted EBITDA from Segment to Consolidated Statements) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ 7,180	$ 6,835	$ 21,311	$ 19,657
Adjustment for legal settlement	(250)	0	(250)	0
Depreciation	(1,991)	(1,865)	(5,876)	(5,518)
Amortization	(589)	(530)	(1,747)	(1,544)
Other operating gains	442	0	442	0
Operating costs and expenses	(696)	(716)	(1,980)	(1,978)
Income before income taxes	4,096	3,724	11,900	10,617
NBCUniversal Media LLC [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	2,274	2,146	6,362	5,457
Depreciation	(253)	(209)	(749)	(624)
Amortization	(253)	(236)	(785)	(700)
Other operating gains	337	0	337	0
Operating costs and expenses	(165)	(195)	(473)	(398)
Income before income taxes	$ 1,940	$ 1,506	$ 4,692	$ 3,735

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Condensed Consolidating Financial Information (Narrative) (Details) - Sep. 30, 2017 $ in Millions	JPY (¥)	USD ($)
NBCUniversal Enterprise Senior Debt Securities [Member]
Debt Instrument [Line Items]
Principal amount of debt securities subject to guarantee		$ 4,800
NBCUniversal Enterprise Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility subject to guarantee		1,500
Universal Studios Japan Term Loan Maturing March 2022 [Member]
Debt Instrument [Line Items]
Term loans subject to guarantee | ¥	¥ 450,000,000,000
Comcast Holdings' ZONES due October 2029 [Member]
Debt Instrument [Line Items]
Principal amount of debt securities subject to guarantee		185
Comcast Holdings' ZONES due November 2029 [Member]
Debt Instrument [Line Items]
Principal amount of debt securities not subject to guarantee		$ 62

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Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 4,114	$ 3,301	$ 2,807	$ 2,295
Receivables, net	7,915	7,955
Programming rights	1,779	1,250
Other current assets	2,152	3,855
Total current assets	15,960	16,361
Film and television costs	6,796	7,252
Investments	6,695	5,247
Investments in and amounts due from subsidiaries eliminated upon consolidation	0	0
Property and equipment, net	37,856	36,253
Franchise rights	59,364	59,364
Goodwill	36,752	35,980
Other intangible assets, net	18,733	17,274
Other noncurrent assets, net	3,145	2,769
Total assets	185,301	180,500
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	6,976	6,915
Accrued participations and residuals	1,811	1,726
Accrued expenses and other current liabilities	7,421	7,414
Current portion of long-term debt	5,241	5,480
Total current liabilities	21,449	21,535
Long-term debt, less current portion	59,720	55,566
Deferred income taxes	35,602	34,854
Other noncurrent liabilities	10,914	10,925
Redeemable noncontrolling interests	1,353	1,446
Equity:
Common stock	55	56
Other shareholders’ equity	55,372	53,887
Total Comcast Corporation shareholders’ equity	55,427	53,943
Noncontrolling interests	836	2,231
Total equity	56,263	56,174	55,823	53,978
Total liabilities and equity	185,301	180,500
Elimination and Consolidation Adjustments [Member]
Assets
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	0	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	(519,515)	(481,214)
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	(1,055)	(1,017)
Total assets	(520,570)	(482,231)
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities	0	0
Current portion of long-term debt	0	0
Total current liabilities	0	0
Long-term debt, less current portion	0	0
Deferred income taxes	(1,084)	(1,017)
Other noncurrent liabilities	29	0
Redeemable noncontrolling interests	0	0
Equity:
Common stock	0	0
Other shareholders’ equity	(519,515)	(481,214)
Total Comcast Corporation shareholders’ equity	(519,515)	(481,214)
Noncontrolling interests	0	0
Total equity	(519,515)	(481,214)
Total liabilities and equity	(520,570)	(482,231)
Comcast Parent [Member] | Reportable Legal Entities [Member]
Assets
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	65	151
Total current assets	65	151
Film and television costs	0	0
Investments	132	75
Investments in and amounts due from subsidiaries eliminated upon consolidation	102,930	98,350
Property and equipment, net	482	298
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	11	13
Other noncurrent assets, net	1,178	1,138
Total assets	104,798	100,025
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	17	23
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities	1,640	1,726
Current portion of long-term debt	2,913	3,739
Total current liabilities	4,570	5,488
Long-term debt, less current portion	42,237	38,123
Deferred income taxes	0	0
Other noncurrent liabilities	2,564	2,471
Redeemable noncontrolling interests	0	0
Equity:
Common stock	55	56
Other shareholders’ equity	55,372	53,887
Total Comcast Corporation shareholders’ equity	55,427	53,943
Noncontrolling interests	0	0
Total equity	55,427	53,943
Total liabilities and equity	104,798	100,025
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Assets
Cash and cash equivalents	3,854	2,819	2,231	1,881
Receivables, net	7,915	7,955
Programming rights	1,779	1,250
Other current assets	2,057	3,668
Total current assets	15,605	15,692
Film and television costs	6,796	7,252
Investments	5,782	4,521
Investments in and amounts due from subsidiaries eliminated upon consolidation	111,087	97,704
Property and equipment, net	37,374	35,955
Franchise rights	59,364	59,364
Goodwill	36,752	35,980
Other intangible assets, net	18,722	17,261
Other noncurrent assets, net	2,249	1,921
Total assets	293,731	275,650
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	6,959	6,892
Accrued participations and residuals	1,811	1,726
Accrued expenses and other current liabilities	5,087	5,045
Current portion of long-term debt	2,324	1,187
Total current liabilities	16,181	14,850
Long-term debt, less current portion	7,040	6,994
Deferred income taxes	36,124	35,259
Other noncurrent liabilities	7,183	7,288
Redeemable noncontrolling interests	1,353	1,446
Equity:
Common stock	0	0
Other shareholders’ equity	225,014	207,582
Total Comcast Corporation shareholders’ equity	225,014	207,582
Noncontrolling interests	836	2,231
Total equity	225,850	209,813
Total liabilities and equity	293,731	275,650
Comcast Holdings [Member] | Subsidiary Issuer [Member] | Reportable Legal Entities [Member]
Assets
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	11	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	128,663	120,071
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	687	638
Total assets	129,361	120,709
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities	92	0
Current portion of long-term debt	0	0
Total current liabilities	92	0
Long-term debt, less current portion	139	141
Deferred income taxes	492	542
Other noncurrent liabilities	0	0
Redeemable noncontrolling interests	0	0
Equity:
Common stock	0	0
Other shareholders’ equity	128,638	120,026
Total Comcast Corporation shareholders’ equity	128,638	120,026
Noncontrolling interests	0	0
Total equity	128,638	120,026
Total liabilities and equity	129,361	120,709
CCCL Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Assets
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Programming rights	0	0
Other current assets	0	0
Total current assets	0	0
Film and television costs	0	0
Investments	79	0
Investments in and amounts due from subsidiaries eliminated upon consolidation	126,361	117,696
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	0	0
Total assets	126,440	117,696
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities	208	341
Current portion of long-term debt	0	550
Total current liabilities	208	891
Long-term debt, less current portion	2,100	2,100
Deferred income taxes	0	0
Other noncurrent liabilities	0	0
Redeemable noncontrolling interests	0	0
Equity:
Common stock	0	0
Other shareholders’ equity	124,132	114,705
Total Comcast Corporation shareholders’ equity	124,132	114,705
Noncontrolling interests	0	0
Total equity	124,132	114,705
Total liabilities and equity	126,440	117,696
NBCUniversal Media Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Assets
Cash and cash equivalents	260	482	$ 576	$ 414
Receivables, net	0	0
Programming rights	0	0
Other current assets	30	36
Total current assets	290	518
Film and television costs	0	0
Investments	691	651
Investments in and amounts due from subsidiaries eliminated upon consolidation	50,474	47,393
Property and equipment, net	0	0
Franchise rights	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Other noncurrent assets, net	86	89
Total assets	51,541	48,651
Liabilities and Equity
Accounts payable and accrued expenses related to trade creditors	0	0
Accrued participations and residuals	0	0
Accrued expenses and other current liabilities	394	302
Current portion of long-term debt	4	4
Total current liabilities	398	306
Long-term debt, less current portion	8,204	8,208
Deferred income taxes	70	70
Other noncurrent liabilities	1,138	1,166
Redeemable noncontrolling interests	0	0
Equity:
Common stock	0	0
Other shareholders’ equity	41,731	38,901
Total Comcast Corporation shareholders’ equity	41,731	38,901
Noncontrolling interests	0	0
Total equity	41,731	38,901
Total liabilities and equity	$ 51,541	$ 48,651

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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Service revenue	$ 20,983	$ 21,319	$ 62,611	$ 59,378
Management fee revenue	0	0	0	0
Revenue	20,983	21,319	62,611	59,378
Costs and Expenses:
Programming and production	6,077	7,003	18,492	17,926
Other operating and administrative	6,423	5,996	18,310	17,285
Advertising, marketing and promotion	1,553	1,485	4,748	4,510
Depreciation	1,991	1,865	5,876	5,518
Amortization	589	530	1,747	1,544
Other operating gains	(442)	0	(442)	0
Total costs and expenses	16,191	16,879	48,731	46,783
Operating income	4,792	4,440	13,880	12,595
Other Income (Expense):
Interest expense	(766)	(751)	(2,279)	(2,186)
Investment income (loss), net	82	80	205	168
Equity in net income (losses) of investees, net	(39)	(34)	12	(64)
Other income (expense), net	27	(11)	82	104
Total other income (expense)	(696)	(716)	(1,980)	(1,978)
Income before income taxes	4,096	3,724	11,900	10,617
Income tax expense	(1,413)	(1,400)	(4,035)	(3,989)
Net income	2,683	2,324	7,865	6,628
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33)	(87)	(136)	(229)
Net income attributable to Comcast Corporation	2,650	2,237	7,729	6,399
Comprehensive income (loss) attributable to Comcast Corporation	2,603	2,270	7,818	6,607
Elimination and Consolidation Adjustments [Member]
Revenue:
Service revenue	0	0	0	0
Management fee revenue	(565)	(531)	(1,668)	(1,571)
Revenue	(565)	(531)	(1,668)	(1,571)
Costs and Expenses:
Programming and production	0	0	0	0
Other operating and administrative	(565)	(531)	(1,668)	(1,571)
Advertising, marketing and promotion	0	0	0	0
Depreciation	0	0	0	0
Amortization	0	0	0	0
Other operating gains	0	0	0	0
Total costs and expenses	(565)	(531)	(1,668)	(1,571)
Operating income	0	0	0	0
Other Income (Expense):
Interest expense	0	0	0	0
Investment income (loss), net	0	0	0	0
Equity in net income (losses) of investees, net	(11,465)	(9,971)	(32,731)	(27,991)
Other income (expense), net	0	0	0	0
Total other income (expense)	(11,465)	(9,971)	(32,731)	(27,991)
Income before income taxes	(11,465)	(9,971)	(32,731)	(27,991)
Income tax expense	0	0	0	0
Net income	(11,465)	(9,971)	(32,731)	(27,991)
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	0	0	0	0
Net income attributable to Comcast Corporation	(11,465)	(9,971)	(32,731)	(27,991)
Comprehensive income (loss) attributable to Comcast Corporation	(11,240)	(10,029)	(32,573)	(28,962)
Comcast Parent [Member] | Reportable Legal Entities [Member]
Revenue:
Service revenue	0	0	0	0
Management fee revenue	285	268	841	793
Revenue	285	268	841	793
Costs and Expenses:
Programming and production	0	0	0	0
Other operating and administrative	183	194	553	635
Advertising, marketing and promotion	0	0	0	0
Depreciation	7	7	21	21
Amortization	1	1	4	4
Other operating gains	0	0	0	0
Total costs and expenses	191	202	578	660
Operating income	94	66	263	133
Other Income (Expense):
Interest expense	(544)	(502)	(1,592)	(1,431)
Investment income (loss), net	(2)	3	(1)	6
Equity in net income (losses) of investees, net	2,944	2,519	8,594	7,239
Other income (expense), net	0	0	0	0
Total other income (expense)	2,398	2,020	7,001	5,814
Income before income taxes	2,492	2,086	7,264	5,947
Income tax expense	158	151	465	452
Net income	2,650	2,237	7,729	6,399
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	0	0	0	0
Net income attributable to Comcast Corporation	2,650	2,237	7,729	6,399
Comprehensive income (loss) attributable to Comcast Corporation	2,603	2,270	7,818	6,607
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Revenue:
Service revenue	20,983	21,319	62,611	59,378
Management fee revenue	0	0	0	0
Revenue	20,983	21,319	62,611	59,378
Costs and Expenses:
Programming and production	6,077	7,003	18,492	17,926
Other operating and administrative	6,248	5,848	17,754	16,704
Advertising, marketing and promotion	1,553	1,485	4,748	4,510
Depreciation	1,984	1,858	5,855	5,497
Amortization	588	529	1,743	1,540
Other operating gains	(442)	0	(442)	0
Total costs and expenses	16,008	16,723	48,150	46,177
Operating income	4,975	4,596	14,461	13,201
Other Income (Expense):
Interest expense	(55)	(74)	(175)	(225)
Investment income (loss), net	61	93	151	185
Equity in net income (losses) of investees, net	1,786	1,255	4,313	3,160
Other income (expense), net	15	(9)	24	(11)
Total other income (expense)	1,807	1,265	4,313	3,109
Income before income taxes	6,782	5,861	18,774	16,310
Income tax expense	(1,572)	(1,568)	(4,513)	(4,489)
Net income	5,210	4,293	14,261	11,821
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	(33)	(87)	(136)	(229)
Net income attributable to Comcast Corporation	5,177	4,206	14,125	11,592
Comprehensive income (loss) attributable to Comcast Corporation	5,049	4,235	13,998	12,134
Comcast Holdings [Member] | Subsidiary Issuer [Member] | Reportable Legal Entities [Member]
Revenue:
Service revenue	0	0	0	0
Management fee revenue	0	0	0	0
Revenue	0	0	0	0
Costs and Expenses:
Programming and production	0	0	0	0
Other operating and administrative	0	0	0	0
Advertising, marketing and promotion	0	0	0	0
Depreciation	0	0	0	0
Amortization	0	0	0	0
Other operating gains	0	0	0	0
Total costs and expenses	0	0	0	0
Operating income	0	0	0	0
Other Income (Expense):
Interest expense	(3)	(3)	(9)	(9)
Investment income (loss), net	32	(4)	84	(3)
Equity in net income (losses) of investees, net	2,483	2,385	7,746	6,924
Other income (expense), net	0	0	0	0
Total other income (expense)	2,512	2,378	7,821	6,912
Income before income taxes	2,512	2,378	7,821	6,912
Income tax expense	(10)	2	(26)	4
Net income	2,502	2,380	7,795	6,916
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	0	0	0	0
Net income attributable to Comcast Corporation	2,502	2,380	7,795	6,916
Comprehensive income (loss) attributable to Comcast Corporation	2,486	2,388	7,793	7,015
CCCL Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Revenue:
Service revenue	0	0	0	0
Management fee revenue	280	263	827	778
Revenue	280	263	827	778
Costs and Expenses:
Programming and production	0	0	0	0
Other operating and administrative	280	263	827	778
Advertising, marketing and promotion	0	0	0	0
Depreciation	0	0	0	0
Amortization	0	0	0	0
Other operating gains	0	0	0	0
Total costs and expenses	280	263	827	778
Operating income	0	0	0	0
Other Income (Expense):
Interest expense	(48)	(59)	(159)	(179)
Investment income (loss), net	0	0	0	0
Equity in net income (losses) of investees, net	1,992	2,134	6,613	6,375
Other income (expense), net	0	0	0	0
Total other income (expense)	1,944	2,075	6,454	6,196
Income before income taxes	1,944	2,075	6,454	6,196
Income tax expense	17	21	56	63
Net income	1,961	2,096	6,510	6,259
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	0	0	0	0
Net income attributable to Comcast Corporation	1,961	2,096	6,510	6,259
Comprehensive income (loss) attributable to Comcast Corporation	1,965	2,096	6,516	6,261
NBCUniversal Media Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Revenue:
Service revenue	0	0	0	0
Management fee revenue	0	0	0	0
Revenue	0	0	0	0
Costs and Expenses:
Programming and production	0	0	0	0
Other operating and administrative	277	222	844	739
Advertising, marketing and promotion	0	0	0	0
Depreciation	0	0	0	0
Amortization	0	0	0	0
Other operating gains	0	0	0	0
Total costs and expenses	277	222	844	739
Operating income	(277)	(222)	(844)	(739)
Other Income (Expense):
Interest expense	(116)	(113)	(344)	(342)
Investment income (loss), net	(9)	(12)	(29)	(20)
Equity in net income (losses) of investees, net	2,221	1,644	5,477	4,229
Other income (expense), net	12	(2)	58	115
Total other income (expense)	2,108	1,517	5,162	3,982
Income before income taxes	1,831	1,295	4,318	3,243
Income tax expense	(6)	(6)	(17)	(19)
Net income	1,825	1,289	4,301	3,224
Net (income) loss attributable to noncontrolling interests and redeemable subsidiary preferred stock	0	0	0	0
Net income attributable to Comcast Corporation	1,825	1,289	4,301	3,224
Comprehensive income (loss) attributable to Comcast Corporation	$ 1,740	$ 1,310	$ 4,266	$ 3,552

XML

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			$ 15,961	$ 13,989
Investing Activities
Net transactions with affiliates			0	0
Capital expenditures	$ (2,434)	$ (2,406)	(6,839)	(6,562)
Cash paid for intangible assets	(404)	(426)	(1,240)	(1,163)
Acquisitions and construction of real estate properties			(325)	(303)
Acquisitions, net of cash acquired			(429)	(3,904)
Proceeds from sales of investments			120	188
Purchases of investments			(2,064)	(618)
Deposits			0	(1,748)
Other			750	(42)
Net cash provided by (used in) investing activities			(10,027)	(14,152)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			(2,807)	610
Proceeds from borrowings			11,460	9,231
Repurchases and repayments of debt			(5,021)	(2,994)
Repurchases of common stock under repurchase program and employee plans			(4,212)	(4,061)
Dividends paid			(2,147)	(1,944)
Purchase of Universal Studios Japan noncontrolling interests			(2,299)	0
Issuances of common stock			0	23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			(198)	(194)
Other			103	4
Net cash provided by (used in) financing activities			(5,121)	675
Increase (decrease) in cash and cash equivalents			813	512
Cash and cash equivalents, beginning of period			3,301	2,295
Cash and cash equivalents, end of period	4,114	2,807	4,114	2,807
Elimination and Consolidation Adjustments [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			0	0
Investing Activities
Net transactions with affiliates			0	0
Capital expenditures			0	0
Cash paid for intangible assets			0	0
Acquisitions and construction of real estate properties			0	0
Acquisitions, net of cash acquired			0	0
Proceeds from sales of investments			0	0
Purchases of investments			0	0
Deposits			0	0
Other			0	0
Net cash provided by (used in) investing activities			0	0
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			0	0
Proceeds from borrowings			0	0
Repurchases and repayments of debt			0	0
Repurchases of common stock under repurchase program and employee plans			0	0
Dividends paid			0	0
Purchase of Universal Studios Japan noncontrolling interests			0
Issuances of common stock			0	0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			0	0
Other			0	0
Net cash provided by (used in) financing activities			0	0
Increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents, beginning of period			0	0
Cash and cash equivalents, end of period	0	0	0	0
Comcast Parent [Member] | Reportable Legal Entities [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			(931)	(637)
Investing Activities
Net transactions with affiliates			4,216	(1,746)
Capital expenditures			(6)	(9)
Cash paid for intangible assets			(2)	(4)
Acquisitions and construction of real estate properties			(190)	(2)
Acquisitions, net of cash acquired			0	0
Proceeds from sales of investments			0	0
Purchases of investments			(56)	(23)
Deposits			0	0
Other			101	(108)
Net cash provided by (used in) investing activities			4,063	(1,892)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			(1,739)	105
Proceeds from borrowings			5,997	9,231
Repurchases and repayments of debt			(1,000)	(750)
Repurchases of common stock under repurchase program and employee plans			(4,212)	(4,061)
Dividends paid			(2,147)	(1,944)
Purchase of Universal Studios Japan noncontrolling interests			0
Issuances of common stock			0	23
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			0	0
Other			(31)	(75)
Net cash provided by (used in) financing activities			(3,132)	2,529
Increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents, beginning of period			0	0
Cash and cash equivalents, end of period	0	0	0	0
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			18,088	15,873
Investing Activities
Net transactions with affiliates			(5,776)	(583)
Capital expenditures			(6,833)	(6,553)
Cash paid for intangible assets			(1,238)	(1,159)
Acquisitions and construction of real estate properties			(135)	(301)
Acquisitions, net of cash acquired			(429)	(3,904)
Proceeds from sales of investments			110	84
Purchases of investments			(1,916)	(586)
Deposits			0	(1,748)
Other			600	101
Net cash provided by (used in) investing activities			(15,617)	(14,649)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			(1,068)	505
Proceeds from borrowings			5,463	0
Repurchases and repayments of debt			(3,468)	(1,239)
Repurchases of common stock under repurchase program and employee plans			0	0
Dividends paid			0	0
Purchase of Universal Studios Japan noncontrolling interests			(2,299)
Issuances of common stock			0	0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			(198)	(194)
Other			134	54
Net cash provided by (used in) financing activities			(1,436)	(874)
Increase (decrease) in cash and cash equivalents			1,035	350
Cash and cash equivalents, beginning of period			2,819	1,881
Cash and cash equivalents, end of period	3,854	2,231	3,854	2,231
Comcast Holdings [Member] | Subsidiary Issuer [Member] | Reportable Legal Entities [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			91	0
Investing Activities
Net transactions with affiliates			(91)	0
Capital expenditures			0	0
Cash paid for intangible assets			0	0
Acquisitions and construction of real estate properties			0	0
Acquisitions, net of cash acquired			0	0
Proceeds from sales of investments			0	0
Purchases of investments			0	0
Deposits			0	0
Other			0	0
Net cash provided by (used in) investing activities			(91)	0
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			0	0
Proceeds from borrowings			0	0
Repurchases and repayments of debt			0	0
Repurchases of common stock under repurchase program and employee plans			0	0
Dividends paid			0	0
Purchase of Universal Studios Japan noncontrolling interests			0
Issuances of common stock			0	0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			0	0
Other			0	0
Net cash provided by (used in) financing activities			0	0
Increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents, beginning of period			0	0
Cash and cash equivalents, end of period	0	0	0	0
CCCL Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			(233)	(179)
Investing Activities
Net transactions with affiliates			818	179
Capital expenditures			0	0
Cash paid for intangible assets			0	0
Acquisitions and construction of real estate properties			0	0
Acquisitions, net of cash acquired			0	0
Proceeds from sales of investments			0	0
Purchases of investments			(35)	0
Deposits			0	0
Other			0	0
Net cash provided by (used in) investing activities			783	179
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			0	0
Proceeds from borrowings			0	0
Repurchases and repayments of debt			(550)	0
Repurchases of common stock under repurchase program and employee plans			0	0
Dividends paid			0	0
Purchase of Universal Studios Japan noncontrolling interests			0
Issuances of common stock			0	0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			0	0
Other			0	0
Net cash provided by (used in) financing activities			(550)	0
Increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents, beginning of period			0	0
Cash and cash equivalents, end of period	0	0	0	0
NBCUniversal Media Parent [Member] | Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by operating activities			(1,054)	(1,068)
Investing Activities
Net transactions with affiliates			833	2,150
Capital expenditures			0	0
Cash paid for intangible assets			0	0
Acquisitions and construction of real estate properties			0	0
Acquisitions, net of cash acquired			0	0
Proceeds from sales of investments			10	104
Purchases of investments			(57)	(9)
Deposits			0	0
Other			49	(35)
Net cash provided by (used in) investing activities			835	2,210
Financing Activities
Proceeds from (repayments of) short-term borrowings, net			0	0
Proceeds from borrowings			0	0
Repurchases and repayments of debt			(3)	(1,005)
Repurchases of common stock under repurchase program and employee plans			0	0
Dividends paid			0	0
Purchase of Universal Studios Japan noncontrolling interests			0
Issuances of common stock			0	0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock			0	0
Other			0	25
Net cash provided by (used in) financing activities			(3)	(980)
Increase (decrease) in cash and cash equivalents			(222)	162
Cash and cash equivalents, beginning of period			482	414
Cash and cash equivalents, end of period	$ 260	$ 576	$ 260	$ 576