Document

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q

(X) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the quarterly period ended SEPTEMBER 30, 2018

( ) 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 1-8339

NORFOLK SOUTHERN CORPORATION

(Exact name of registrant as specified in its charter)



Virginia (State or other jurisdiction of incorporation)	52-1188014 (IRS Employer Identification No.)
Three Commercial Place Norfolk, Virginia (Address of principal executive offices)	23510-2191 (Zip Code)
(757) 629-2680 (Registrant’s telephone number, including area code)
No Change (Former name, former address and former fiscal year, if changed since last report)

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 12 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.

Yes [X] No [ ]

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes [X] No [ ]

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 the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer [X] Accelerated filer [ ] Non-accelerated filer [ ] Smaller reporting company [ ] Emerging growth company [ ]

If an emerging growth company, indicate by check mark if 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 [ ]

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

Yes [ ] No [X]

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.



Class		Outstanding at September 30, 2018
Common Stock ($1.00 par value per share)		272,346,940 (excluding 20,320,777 shares held by the registrant’s consolidated subsidiaries)

TABLE OF CONTENTS

NORFOLK SOUTHERN CORPORATION AND SUBSIDIARIES



		Page
Part I.	Financial Information:
	Item 1.	Financial Statements:
		Consolidated Statements of Income Third Quarter and First Nine Months of 2018 and 2017	3
		Consolidated Statements of Comprehensive Income Third Quarter and First Nine Months of 2018 and 2017	4
		Consolidated Balance Sheets At September 30, 2018 and December 31, 2017	5
		Consolidated Statements of Cash Flows First Nine Months of 2018 and 2017	6
		Notes to Consolidated Financial Statements	7
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	25
	Item 4.	Controls and Procedures	25

Part II.	Other Information:
	Item 1.	Legal Proceedings	26
	Item 1A.	Risk Factors	26
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	27
	Item 6.	Exhibits	28

		Signatures	29

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

Norfolk Southern Corporation and Subsidiaries

Consolidated Statements of Income

(Unaudited)



	Third Quarter				First Nine Months
	2018		2017		2018		2017
	($ in millions, except per share amounts)

Railway operating revenues	$	2,947	$	2,670	$	8,562	$	7,882

Railway operating expenses:
Compensation and benefits	725		771		2,168		2,249
Purchased services and rents	450		377		1,281		1,146
Fuel	274		198		812		601
Depreciation	276		265		821		788
Materials and other	202		164		599		574

Total railway operating expenses	1,927		1,775		5,681		5,358

Income from railway operations	1,020		895		2,881		2,524

Other income – net	30		39		67		127
Interest expense on debt	142		134		409		416

Income before income taxes	908		800		2,539		2,235

Income taxes	206		294		575		799

Net income	$	702	$	506	$	1,964	$	1,436

Per share amounts:
Net income
Basic	$	2.54	$	1.76	$	7.00	$	4.96
Diluted	2.52		1.75		6.95		4.93

Dividends	0.80		0.61		2.24		1.83

See accompanying notes to consolidated financial statements.

Norfolk Southern Corporation and Subsidiaries

Consolidated Statements of Comprehensive Income

(Unaudited)



	Third Quarter						First Nine Months
	2018			2017			2018			2017
	($ in millions)

Net income	$	702		$	506		$	1,964		$	1,436
Other comprehensive income, before tax:
Pension and other postretirement benefit	8			7			9			21
Other comprehensive income (loss) of equity investees	—			—			2			(1		)
Other comprehensive income, before tax	8			7			11			20

Income tax expense related to items of
other comprehensive income	(2		)	(2		)	(2		)	(8		)

Other comprehensive income, net of tax	6			5			9			12

Total comprehensive income	$	708		$	511		$	1,973		$	1,448

See accompanying notes to consolidated financial statements.

Norfolk Southern Corporation and Subsidiaries

Consolidated Balance Sheets

(Unaudited)



	September 30, 2018			December 31, 2017
	($ in millions)

Assets
Current assets:
Cash and cash equivalents	$	729		$	690
Accounts receivable – net	1,043			955
Materials and supplies	267			222
Other current assets	70			282
Total current assets	2,109			2,149

Investments	3,109			2,981
Properties less accumulated depreciation of $12,276 and
$11,909, respectively	30,712			30,330
Other assets	392			251

Total assets	$	36,322		$	35,711

Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	1,394		$	1,401
Short-term debt	—			100
Income and other taxes	230			211
Other current liabilities	317			233
Current maturities of long-term debt	500			600
Total current liabilities	2,441			2,545

Long-term debt	10,635			9,136
Other liabilities	1,302			1,347
Deferred income taxes	6,464			6,324
Total liabilities	20,842			19,352

Stockholders’ equity:
Common stock $1.00 per share par value, 1,350,000,000 shares
authorized; outstanding 272,346,940 and 284,157,187 shares,
respectively, net of treasury shares	274			285
Additional paid-in capital	1,996			2,254
Accumulated other comprehensive loss	(435		)	(356		)
Retained income	13,645			14,176

Total stockholders’ equity	15,480			16,359

Total liabilities and stockholders’ equity	$	36,322		$	35,711

See accompanying notes to consolidated financial statements.

Norfolk Southern Corporation and Subsidiaries

Consolidated Statements of Cash Flows

(Unaudited)



		First Nine Months
		2018			2017
		($ in millions)

Cash flows from operating activities:
	Net income	$	1,964		$	1,436
	Reconciliation of net income to net cash provided by operating activities:
	Depreciation	822			791
	Deferred income taxes	138			219
	Gains and losses on properties	(26		)	(62		)
	Changes in assets and liabilities affecting operations:
	Accounts receivable	(102		)	(59		)
	Materials and supplies	(45		)	12
	Other current assets	45			68
	Current liabilities other than debt	173			165
	Other – net	(85		)	(105		)

	Net cash provided by operating activities	2,884			2,465

Cash flows from investing activities:
	Property additions	(1,326		)	(1,315		)
	Property sales and other transactions	93			137
	Investment purchases	(4		)	(4		)
	Investment sales and other transactions	96			8

	Net cash used in investing activities	(1,141		)	(1,174		)

Cash flows from financing activities:
	Dividends	(627		)	(529		)
	Common stock transactions	38			75
	Purchase and retirement of common stock	(2,300		)	(712		)
	Proceeds from borrowings – net of issuance costs	2,023			293
	Debt repayments	(750		)	(650		)

	Net cash used in financing activities	(1,616		)	(1,523		)

	Net increase (decrease) in cash, cash equivalents,
	and restricted cash	127			(232		)

Cash, cash equivalents, and restricted cash:
	At beginning of year	690			956

	At end of period	$	817		$	724

Supplemental disclosures of cash flow information:
	Cash paid during the period for:
	Interest (net of amounts capitalized)	$	327		$	345
	Income taxes (net of refunds)	314			594

See accompanying notes to consolidated financial statements.

Norfolk Southern Corporation and Subsidiaries

Notes to Consolidated Financial Statements

(Unaudited)

In the opinion of management, the accompanying unaudited interim consolidated financial statements contain all adjustments (consisting of normal recurring accruals) necessary to present fairly Norfolk Southern Corporation (Norfolk Southern) and subsidiaries’ (collectively, NS, we, us, and our) financial position at September 30, 2018, and December 31, 2017, our results of operations and comprehensive income for the third quarters and first nine months of 2018 and 2017, and our cash flows for the first nine months of 2018 and 2017 in conformity with U.S. generally accepted accounting principles (GAAP).

These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our latest Annual Report on Form 10-K.

1. Railway Operating Revenues

The Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, “Revenue from Contracts with Customers,” and related amendments which are jointly referred to as Accounting Standards Codification (ASC) Topic 606. This update replaced most existing revenue recognition guidance in GAAP and requires entities to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASC Topic 606 defines a performance obligation as a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. We adopted the provisions of this standard on January 1, 2018, using the modified retrospective method. There was no cumulative effect of initially applying ASC Topic 606, nor is there any material difference in revenue in the third quarter and first nine months of 2018 as compared with the GAAP that was in effect prior to January 1, 2018.

The following table disaggregates our revenues by major commodity group:



	Third Quarter		First Nine Months
	2018		2018
Merchandise:	($ in millions)
Chemicals	$	468	$	1,363
Agriculture/consumer/government	428		1,244
Metals/construction	383		1,110
Automotive	245		741
Paper/clay/forest	213		602
Merchandise	1,737		5,060
Intermodal	746		2,138
Coal	464		1,364
Total	$	2,947	$	8,562

A performance obligation is created when a customer under a transportation contract or public tariff submits a bill of lading to NS for the transport of goods. These performance obligations are satisfied as the shipments move from origin to destination. As such, transportation revenue is recognized proportionally as a shipment moves, and related expenses are recognized as incurred. These performance obligations are generally short-term in nature with transit days averaging approximately one week or less for each major commodity group. The customer has an unconditional obligation to pay for the service once the service has been completed. Estimated revenue associated with in-process shipments at period-end is recorded based on the estimated percentage of service completed to total transit days. We had no material remaining performance obligations as of September 30, 2018.

Under the typical payment terms of our freight contracts, payment for services is due within fifteen days of billing the customer, thus there are no significant financing components. “Accounts receivable – net” on the Consolidated Balance Sheets includes both customer and non-customer receivables as follows:



	September 30, 2018		December 31, 2017
	($ in millions)
Customer	$	781	$	703
Non-customer	262		252
Accounts receivable – net	$	1,043	$	955

Non-customer receivables include non-revenue-related amounts due from other railroads, governmental entities, and others. “Other assets” on the Consolidated Balance Sheets includes non-current customer receivables of $53 million and $39 million at September 30, 2018 and December 31, 2017, respectively. We do not have any material contract assets or liabilities.

Certain of our contracts contain refunds (which are primarily volume-based incentives) that are recorded as a reduction to revenue. Refunds are recorded on the basis of management’s best estimate of projected liability, which is based on historical activity, current shipment counts and expectation of future activity.

Certain accessorial services may be provided to customers under their transportation contracts such as switching, demurrage and other incidental service revenues. These are distinct performance obligations that are recognized at a point in time when the services are performed or as contractual obligations are met. This revenue is included within each of the commodity groups and represents approximately 4% of total “Railway operating revenues.”

2. Stock-Based Compensation



	Third Quarter				First Nine Months
	2018		2017		2018		2017
	($ in millions)
Stock-based compensation expense	$	12	$	7	$	41	$	39
Total tax benefit	9		13		29		47

During 2018, a committee of nonemployee members of our Board of Directors (and the Chief Executive Officer under delegated authority by such committee) granted stock options, restricted stock units (RSUs) and performance share units (PSUs) pursuant to the Long-Term Incentive Plan (LTIP), as follows:



	Third Quarter			First Nine Months
	Granted	Weighted-Average Grant-Date Fair Value		Granted	Weighted-Average Grant-Date Fair Value

Stock options	—	$	—	40,960	$	41.70
RSUs	570	172.19		217,290	148.37
PSUs	400	103.36		92,314	91.60

Beginning in 2018, recipients of certain RSUs and PSUs pursuant to the LTIP who retire prior to October 1st will forfeit awards received in the current year.

Stock Options



	Third Quarter				First Nine Months
	2018		2017		2018		2017
	($ in millions)
Stock options exercised	327,275		527,543		797,389		1,538,858
Cash received upon exercise	$	23	$	33	$	56	$	90
Related tax benefit realized	$	7	$	10	$	14	$	29

Restricted Stock Units

RSUs primarily have a four-year ratable restriction period and will be settled through the issuance of shares of Norfolk Southern common stock (Common Stock). Compensation cost for the award is recognized on a straight-line basis over the requisite service period for the entire award. Certain RSU grants include cash dividend equivalent payments during the restriction period in an amount equal to the regular quarterly dividends paid on Common Stock. No RSUs vested or were paid out during the second or third quarters of 2018 or 2017.



	First Nine Months
	2018		2017
	($ in millions)
RSUs vested	160,200		137,200
Common Stock issued net of tax withholding	99,968		81,318
Related tax benefit realized	$	3	$	3

Performance Share Units

PSUs provide for awards based on the achievement of certain predetermined corporate performance goals at the end of a three-year cycle and are settled through the issuance of shares of Common Stock. All PSUs will earn out based on the achievement of performance conditions and some will also earn out based on a market condition. The market condition fair value was measured on the date of grant using a Monte Carlo simulation model. No PSUs were earned or paid out during the second or third quarters of 2018 or 2017.



	First Nine Months
	2018		2017
	($ in millions)
PSUs earned	154,189		171,080
Common Stock issued net of tax withholding	94,399		99,805
Related tax benefit realized	$	3	$	1

3. Earnings Per Share

The following table sets forth the calculation of basic and diluted earnings per share:



	Basic						Diluted
	Third Quarter
	2018			2017			2018			2017
	($ in millions, except per share amounts, shares in millions)

Net income	$	702		$	506		$	702		$	506
Dividend equivalent payments	(2		)	(1		)	—			—

Income available to common stockholders	$	700		$	505		$	702		$	506

Weighted-average shares outstanding	275.5			287.1			275.5			287.1
Dilutive effect of outstanding options
and share-settled awards							2.7			2.4

Adjusted weighted-average shares outstanding							278.2			289.5

Earnings per share	$	2.54		$	1.76		$	2.52		$	1.75

	Basic						Diluted
	First Nine Months
	2018			2017			2018			2017
	($ in millions, except per share amounts, shares in millions)

Net income	$	1,964		$	1,436		$	1,964		$	1,436
Dividend equivalent payments	(4		)	(3		)	(1		)	(1		)

Income available to common stockholders	$	1,960		$	1,433		$	1,963		$	1,435

Weighted-average shares outstanding	280.1			288.8			280.1			288.8
Dilutive effect of outstanding options
and share-settled awards							2.5			2.4

Adjusted weighted-average shares outstanding							282.6			291.2

Earnings per share	$	7.00		$	4.96		$	6.95		$	4.93

During the third quarters and first nine months of 2018 and 2017, dividend equivalent payments were made to holders of stock options and RSUs. For purposes of computing basic earnings per share, dividend equivalent payments made to holders of stock options and RSUs were deducted from net income to determine income available to common stockholders. For purposes of computing diluted earnings per share, we evaluate on a grant-by-grant basis those stock options and RSUs receiving dividend equivalent payments under the two-class and treasury stock methods to determine which method is more dilutive for each grant. For those grants for which the two-class

method was more dilutive, net income was reduced by dividend equivalent payments to determine income available to common stockholders. The dilution calculations exclude options having exercise prices exceeding the average market price of Common Stock of zero and 0.3 million for the first nine months ended September 30, 2018 and 2017, respectively.

4. Accumulated Other Comprehensive Loss

The changes in the cumulative balances of “Accumulated other comprehensive loss” reported in the Consolidated Balance Sheets consisted of the following:



	Balance at Beginning of Year			Net Income (Loss)			Reclassification of Stranded Tax Effects			Reclassification Adjustments		Balance at End of Period
	($ in millions)
Nine Months Ended September 30, 2018
Pensions and other
postretirement liabilities	$	(300	)	$	(11	)	$	(86	)	$	18	$	(379	)
Other comprehensive income
(loss) of equity investees	(56		)	2			(2		)	—		(56		)

Accumulated other
comprehensive loss	$	(356	)	$	(9	)	$	(88	)	$	18	$	(435	)

Nine Months Ended September 30, 2017
Pensions and other
postretirement liabilities	$	(414	)	$	—		$	—		$	13	$	(401	)
Other comprehensive loss
of equity investees	(73		)	(1		)	—			—		(74		)

Accumulated other
comprehensive loss	$	(487	)	$	(1	)	$	—		$	13	$	(475	)

In February 2018, the FASB issued ASU 2018-02, “Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” This update is intended to reclassify the stranded tax effects resulting from the Tax Cuts and Jobs Act (“tax reform”) that was enacted on December 22, 2017 from accumulated other comprehensive income (AOCI) to retained earnings. The amount of the reclassification is the difference between the amount initially charged or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in AOCI and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate. In the first quarter of 2018, we adopted the provisions of ASU 2018-02 resulting in an increase to “Accumulated other comprehensive loss” of $88 million and a corresponding increase to “Retained income,” with no impact on “Total stockholders’ equity.”

5. Stock Repurchase Programs

We repurchased and retired 12.8 million shares (5.7 million shares under an accelerated stock repurchase program (ASR) and 7.1 million shares under our ongoing program) and 6.0 million shares of Common Stock under our stock repurchase programs in the first nine months of 2018 and 2017, respectively, at a cost of $2.1 billion and $712 million, respectively. We entered into an ASR on August 2, 2018 with two third-party financial institutions to repurchase Common Stock, at which time we made a payment of $1.2 billion to the financial institutions and received an initial delivery of 5.7 million shares valued at $960 million. The remaining balance of $240 million, included in “Additional paid-in capital” on the Consolidated Balance Sheets, will be settled no later than the end of January 2019, with the final number of shares to be delivered by the financial institutions equal to the volume-weighted average price per share of Common Stock over the ASR term, less a negotiated discount.

Since the beginning of 2006, we have repurchased and retired 181.3 million shares at a total cost of $13.4 billion.

6. Investments

Investment in Conrail

Through a limited liability company, we and CSX Corporation (CSX) jointly own Conrail Inc. (Conrail), whose primary subsidiary is Consolidated Rail Corporation (CRC). We have a 58% economic and 50% voting interest in the jointly owned entity, and CSX has the remainder of the economic and voting interests. Our investment in Conrail was $1.3 billion at both September 30, 2018, and December 31, 2017.

CRC owns and operates certain properties (the Shared Assets Areas) for the joint and exclusive benefit of Norfolk Southern Railway Company (NSR) and CSX Transportation, Inc. (CSXT). The costs of operating the Shared Assets Areas are borne by NSR and CSXT based on usage. In addition, NSR and CSXT pay CRC a fee for access to the Shared Assets Areas. “Purchased services and rents” and “Fuel” include amounts payable to CRC for the operation of the Shared Assets Areas totaling $38 million and $34 million for the third quarters of 2018 and 2017, respectively, and $112 million and $106 million for the first nine months of 2018 and 2017, respectively. Our equity in the earnings of Conrail, net of amortization, included in “Purchased services and rents” was $12 million and $10 million for the third quarters of 2018 and 2017, respectively, and $46 million and $30 million for the first nine months of 2018 and 2017, respectively.

“Other liabilities” includes $280 million at both September 30, 2018, and December 31, 2017, for long-term advances from Conrail, maturing 2044, that bear interest at an average rate of 2.9%.

Investment in TTX

NS and eight other North American railroads jointly own TTX Company (TTX). NS has a 19.65% ownership interest in TTX, a railcar pooling company that provides its owner-railroads with standardized fleets of intermodal, automotive, and general use railcars at stated rates.

Amounts paid to TTX for use of equipment are included in “Purchased services and rents” and amounted to $43 million and $58 million of expense for the third quarters of 2018 and 2017, respectively, and $176 million and $173 million for the first nine months of 2018 and 2017, respectively. Our equity in the earnings of TTX, also included in “Purchased services and rents,” totaled $16 million and $14 million for the third quarters of 2018 and 2017, respectively, and $49 million and $32 million for the first nine months of 2018 and 2017, respectively.

7. Debt

During the third quarter of 2018, we issued $300 million of 3.65% senior notes due 2025, $400 million of 3.80% senior notes due 2028, $200 million of 4.15% senior notes due 2048, and $600 million of 5.10% senior notes due 2118.

In June of 2018, we renewed and amended our accounts receivable securitization program from $350 million to $400 million on a 364-day term to run through May 2019. We had no amounts outstanding under this program at September 30, 2018 and $100 million outstanding at December 31, 2017, reflected as “Short-term debt” on the Consolidated Balance Sheets.

During the first quarter of 2018, we issued $500 million of 4.15% senior notes due 2048.

The “Cash, cash equivalents, and restricted cash” line item in the Consolidated Statements of Cash Flows includes restricted cash of $88 million at September 30, 2018 which reflects deposits held by a third party bond agent as collateral for certain debt obligations maturing in 2019. The restricted cash balance is included as part of “Other assets” on the Consolidated Balance Sheets.

8. Pensions and Other Postretirement Benefits

We have both funded and unfunded defined benefit pension plans covering principally salaried employees. We also provide specified health care and life insurance benefits to eligible retired employees; these plans can be amended or terminated at our option. Under our self-insured retiree health care plan, for those participants who are not Medicare-eligible, a defined percentage of health care expenses is covered for retired employees and their dependents, reduced by any deductibles, coinsurance, and, in some cases, coverage provided under other group insurance policies. Those participants who are Medicare-eligible are not covered under the self-insured retiree health care plan, but instead are provided with an employer-funded health reimbursement account which can be used for reimbursement of health insurance premiums or eligible out-of-pocket medical expenses.

Pension and postretirement benefit cost components for the third quarters and first nine months are as follows:



							Other Postretirement
	Pension Benefits						Benefits
	Third Quarter
	2018			2017			2018			2017
	($ in millions)

Service cost	$	9		$	9		$	2		$	2
Interest cost	21			20			4			4
Expected return on plan assets	(44		)	(43		)	(4		)	(4		)
Amortization of net losses	14			13			—			—
Amortization of prior service benefit	—			—			(6		)	(6		)

Net benefit	$	—		$	(1	)	$	(4	)	$	(4	)



							Other Postretirement
	Pension Benefits						Benefits
	First Nine Months
	2018			2017			2018			2017
	($ in millions)

Service cost	$	29		$	28		$	6		$	6
Interest cost	63			60			12			12
Expected return on plan assets	(133		)	(129		)	(12		)	(12		)
Amortization of net losses	42			39			—			—
Amortization of prior service benefit	—			—			(18		)	(18		)

Net expense (benefit)	$	1		$	(2	)	$	(12	)	$	(12	)

In March 2017, the FASB issued ASU 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” This update requires segregation of net benefit costs between operating and non-operating expenses and also requires retrospective application. We adopted the standard on January 1, 2018. Under the new standard, only the service cost component of defined benefit pension cost and postretirement benefit cost are reported within “Compensation and benefits” and all other components of net benefit cost are presented in “Other income – net” on the Consolidated Statements of Income, whereas under the previous standard all components were included in “Compensation and benefits.”

The retrospective application resulted in an offsetting increase in “Compensation and benefits” expense and an increase in “Other income – net” on the Consolidated Statements of Income of $16 million and $48 million for the third quarter and first nine months of 2017, respectively, with no impact on “Net income.”

9. Fair Values of Financial Instruments

The fair values of “Cash and cash equivalents,” “Accounts receivable,” “Accounts payable,” and “Short-term debt” approximate carrying values because of the short maturity of these financial instruments. The carrying value of corporate-owned life insurance is recorded at cash surrender value and, accordingly, approximates fair value. Other than these assets and liabilities that approximate fair value, there are no other assets or liabilities measured at fair value on a recurring basis at September 30, 2018, or December 31, 2017. The carrying amounts and estimated fair values for the remaining financial instruments, excluding investments accounted for under the equity method, consisted of the following:



	September 30, 2018						December 31, 2017
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
	($ in millions)

Long-term investments	$	21		$	39		$	26		$	43
Long-term debt, including current maturities	(11,135		)	(12,397		)	(9,736		)	(11,771		)

Underlying net assets and future discounted cash flows were used to estimate the fair value of investments. The fair values of long-term debt were estimated based on quoted market prices or discounted cash flows using current interest rates for debt with similar terms, credit rating, and remaining maturity.

The following table sets forth the fair value of long-term investment and long-term debt balances disclosed above by valuation technique level, within the fair value hierarchy (there were no level 3 valued assets or liabilities).



	Level 1			Level 2			Total
	($ in millions)

September 30, 2018
Long-term investments	$	—		$	39		$	39
Long-term debt, including current maturities	(12,304		)	(93		)	(12,397		)

December 31, 2017
Long-term investments	$	4		$	39		$	43
Long-term debt, including current maturities	(11,676		)	(95		)	(11,771		)

10. Commitments and Contingencies

Lawsuits

We and/or certain subsidiaries are defendants in numerous lawsuits and other claims relating principally to railroad operations. When we conclude that it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, it is accrued through a charge to earnings. While the ultimate amount of liability incurred in any of these lawsuits and claims is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payment of such liability and claims. However, the final outcome of any of these lawsuits and claims cannot be predicted with certainty, and unfavorable or unexpected outcomes could result in additional accruals that could be significant to results of operations in a particular year or quarter. Any adjustments to the recorded liability will be reflected in earnings in the periods in which such adjustments become known.

One of our chemical customers, Sunbelt Chlor Alkali Partnerships (Sunbelt), filed in 2011 a rate reasonableness complaint before the Surface Transportation Board (STB) alleging that our tariff rates for transportation of regulated movements are unreasonable. Since April 1, 2011, we have been billing and collecting amounts based on the challenged tariff rates. In 2014, the STB resolved this rate reasonableness complaint in our favor and, in June 2016, the STB resolved petitions for reconsideration. Sunbelt’s appeal of the STB’s decision to the United States Court of Appeal for the 11th Circuit was denied on January 26, 2018. This matter did not have a material effect on our financial position, results of operations, or liquidity.

In 2007, various antitrust class actions filed against us and other Class I railroads in various Federal district courts regarding fuel surcharges were consolidated in the District of Columbia by the Judicial Panel on Multidistrict Litigation. In 2012, the court certified the case as a class action. The defendant railroads appealed this certification, and the Court of Appeals for the District of Columbia vacated the District Court’s decision and remanded the case for further consideration. On October 10, 2017, the District Court denied class certification; the findings are subject to appeal. We believe the allegations in the complaints are without merit and intend to vigorously defend the cases. We do not believe the outcome of these proceedings will have a material effect on our financial position, results of operations, or liquidity.

Casualty Claims

Casualty claims include employee personal injury and occupational claims as well as third-party claims, all exclusive of legal costs. To aid in valuing our personal injury liability and determining the amount to accrue with respect to such claims during the year, we utilize studies prepared by an independent consulting actuarial firm. Job-related personal injury and occupational claims are subject to the Federal Employer’s Liability Act (FELA), which is applicable only to railroads. FELA’s fault-based tort system produces results that are unpredictable and inconsistent as compared with a no-fault workers’ compensation system. The variability inherent in this system could result in actual costs being different from the liability recorded. While the ultimate amount of claims incurred is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payments

of claims and is supported by the most recent actuarial study. In all cases, we record a liability when the expected loss for the claim is both probable and reasonably estimable.

Employee personal injury claims – The largest component of casualties and other claims expense is employee personal injury costs. The independent actuarial firm engaged by us provides quarterly studies to aid in valuing our employee personal injury liability and estimating personal injury expense. The actuarial firm studies our historical patterns of reserving for claims and subsequent settlements, taking into account relevant outside influences. The actuarial firm uses the results of these analyses to estimate the ultimate amount of liability. We adjust the liability quarterly based upon our assessment and the results of the study. Our estimate of the liability is subject to inherent limitation given the difficulty of predicting future events such as jury decisions, court interpretations, or legislative changes. As a result, actual claim settlements may vary from the estimated liability recorded.

Occupational claims – Occupational claims (including asbestosis and other respiratory diseases, as well as conditions allegedly related to repetitive motion) are often not caused by a specific accident or event but rather allegedly result from a claimed exposure over time. Many such claims are being asserted by former or retired employees, some of whom have not been employed in the rail industry for decades. The independent actuarial firm provides an estimate of the occupational claims liability based upon our history of claim filings, severity, payments, and other pertinent facts. The liability is dependent upon judgments we make as to the specific case reserves as well as judgments of the actuarial firm in the quarterly studies. The actuarial firm’s estimate of ultimate loss includes a provision for those claims that have been incurred but not reported. This provision is derived by analyzing industry data and projecting our experience. We adjust the liability quarterly based upon our assessment and the results of the study. However, it is possible that the recorded liability may not be adequate to cover the future payment of claims. Adjustments to the recorded liability are reflected in operating expenses in the periods in which such adjustments become known.

Third-party claims – We record a liability for third-party claims including those for highway crossing accidents, trespasser and other injuries, automobile liability, property damage, and lading damage. The actuarial firm assists us with the calculation of potential liability for third-party claims, except lading damage, based upon our experience including the number and timing of incidents, amount of payments, settlement rates, number of open claims, and legal defenses. We adjust the liability quarterly based upon our assessment and the results of the study. Given the inherent uncertainty in regard to the ultimate outcome of third-party claims, it is possible that the actual loss may differ from the estimated liability recorded.

Environmental Matters

We are subject to various jurisdictions’ environmental laws and regulations. We record a liability where such liability or loss is probable and reasonably estimable. Environmental engineers regularly participate in ongoing evaluations of all known sites and in determining any necessary adjustments to liability estimates.

Our Consolidated Balance Sheets include liabilities for environmental exposures of $59 million and $58 million at September 30, 2018 and December 31, 2017, respectively of which $15 million is classified as a current liability at both dates. At September 30, 2018, the liability represents our estimates of the probable cleanup, investigation, and remediation costs based on available information at 120 known locations and projects compared with 127 locations and projects at December 31, 2017. At September 30, 2018, 15 sites accounted for $38 million of the liability, and no individual site was considered to be material. We anticipate that much of this liability will be paid out over five years; however, some costs will be paid out over a longer period.

At twelve locations, one or more of our subsidiaries in conjunction with a number of other parties have been identified as potentially responsible parties under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or comparable state statutes that impose joint and several liability for cleanup costs. We calculate our estimated liability for these sites based on facts and legal defenses applicable to each site and not solely on the basis of the potential for joint liability.

With respect to known environmental sites (whether identified by us or by the Environmental Protection Agency or comparable state authorities), estimates of our ultimate potential financial exposure for a given site or in the aggregate for all such sites can change over time because of the widely varying costs of currently available cleanup techniques, unpredictable contaminant recovery and reduction rates associated with available cleanup technologies, the likely development of new cleanup technologies, the difficulty of determining in advance the nature and full extent of contamination and each potential participant’s share of any estimated loss (and that participant’s ability to bear it), and evolving statutory and regulatory standards governing liability.

The risk of incurring environmental liability, for acts and omissions, past, present, and future, is inherent in the railroad business. Some of the commodities we transport, particularly those classified as hazardous materials, pose special risks that we work diligently to reduce. In addition, several of our subsidiaries own, or have owned, land used as operating property, or which is leased and operated by others, or held for sale. Because environmental problems that are latent or undisclosed may exist on these properties, there can be no assurance that we will not incur environmental liabilities or costs with respect to one or more of them, the amount and materiality of which cannot be estimated reliably at this time. Moreover, lawsuits and claims involving these and potentially other unidentified environmental sites and matters are likely to arise from time to time. The resulting liabilities could have a significant effect on our financial position, results of operations, or liquidity in a particular year or quarter.

Based on our assessment of the facts and circumstances now known, we believe we have recorded the probable and reasonably estimable costs for dealing with those environmental matters of which we are aware. Further, we believe that it is unlikely that any known matters, either individually or in the aggregate, will have a material adverse effect on our financial position, results of operations, or liquidity.

Insurance

We obtain, on behalf of ourself and our subsidiaries, insurance for potential losses for third-party liability and first-party property damages. We are currently self-insured up to $50 million and above $1.1 billion ($1.5 billion for specific perils) per occurrence and/or policy year for bodily injury and property damage to third parties and up to $25 million and above $200 million per occurrence and/or policy year for property owned by us or in our care, custody, or control.

11. New Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-02, “Leases.” This update, effective for our annual and interim reporting periods beginning January 1, 2019, will replace existing lease guidance in GAAP and will require lessees to recognize lease assets and lease liabilities on the balance sheet for leases greater than twelve months and disclose key information about leasing arrangements. When implemented, lessees will be required to measure and record leases at the present value of the remaining lease payments. In July 2018, the FASB issued ASU 2018-11, “Leases (Topic 842): Targeted Improvements,” which created a new, optional transition method for implementing ASU 2016-02. We expect to use this new transition method, which permits the use of the effective date as the date of initial application. We disclosed $660 million in undiscounted operating lease obligations in our lease commitments footnote in our most recent 10-K, and have evaluated those contracts. We continue to evaluate other existing arrangements to determine if they qualify for lease accounting under the new standard. We are in the process of implementing a lease management system to support the new reporting requirements. We do not anticipate a material impact on our results of operations, and we will not adopt the standard early.

In June 2016, the FASB issued ASU 2016-13, “Credit Losses - Measurement of Credit Losses on Financial Instruments,” which replaces the current incurred loss impairment method with a method that reflects expected credit losses. The new standard is effective as of January 1, 2020, and early adoption is permitted as of January 1, 2019. Because credit losses associated from our trade receivables have historically been insignificant, we do not expect this standard to have a material effect on our financial statements.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Norfolk Southern Corporation and Subsidiaries

The following discussion and analysis should be read in conjunction with the Consolidated Financial Statements and Notes.

OVERVIEW

We are one of the nation’s premier transportation companies. Our Norfolk Southern Railway Company subsidiary operates approximately 19,500 miles of road in 22 states and the District of Columbia, with service to every major container port in the eastern United States, and provides efficient connections to other rail carriers. We operate the most extensive intermodal network in the East and are a major transporter of coal, automotive, and industrial products.

We achieved a record low third-quarter operating ratio (a measure of the amount of operating revenues consumed by operating expenses) of 65.4%, in addition to third-quarter records for income from railway operations, net income, and diluted earnings per share. These record results were driven by strong revenue growth and demonstrate continued progress on our long-range objectives.

SUMMARIZED RESULTS OF OPERATIONS

($ in millions, except per share amounts)



	Third Quarter					First Nine Months
	2018		2017		% change	2018		2017		% change
Income from railway operations	$	1,020	$	895	14%	$	2,881	$	2,524	14%
Net income	$	702	$	506	39%	$	1,964	$	1,436	37%
Diluted earnings per share	$	2.52	$	1.75	44%	$	6.95	$	4.93	41%
Railway operating ratio (percent)	65.4		66.5		(2%)	66.4		68.0		(2%)

Income from railway operations rose in both periods as a result of increased railway operating revenues that more than offset higher expenses. Average revenue per unit grew due to higher fuel surcharge revenues and pricing gains, partially offset by the mix-related impacts of increased intermodal volume and decreased coal volume. Volumes rose 5% in both the third quarter and first nine months. Railway operating expense increases included higher fuel prices as well as volume-related increases and costs associated with overall lower network velocity in both periods. Net income and diluted earnings per share also benefited from a lower effective tax rate, primarily due to the enactment of tax reform in late 2017.

DETAILED RESULTS OF OPERATIONS

Railway Operating Revenues

The following tables present a comparison of revenues ($ in millions), volumes (units in thousands), and average revenue per unit ($ per unit) by commodity group.



	Third Quarter					First Nine Months
Revenues	2018		2017		% change	2018		2017		% change
Merchandise:
Chemicals	$	468	$	418	12%	$	1,363	$	1,251	9%
Agr./consumer/gov’t	428		388		10%	1,244		1,156		8%
Metals/construction	383		378		1%	1,110		1,089		2%
Automotive	245		218		12%	741		713		4%
Paper/clay/forest	213		198		8%	602		572		5%
Merchandise	1,737		1,600		9%	5,060		4,781		6%
Intermodal	746		621		20%	2,138		1,785		20%
Coal	464		449		3%	1,364		1,316		4%
Total	$	2,947	$	2,670	10%	$	8,562	$	7,882	9%



Units
Merchandise:
Chemicals	127.9	115.2	11%	375.8	348.6	8%
Agr./consumer/gov’t	155.3	147.8	5%	461.9	443.0	4%
Metals/construction	189.7	194.2	(2%)	548.0	556.0	(1%)
Automotive	98.4	96.6	2%	305.9	318.5	(4%)
Paper/clay/forest	74.5	73.4	1%	215.8	214.3	1%
Merchandise	645.8	627.2	3%	1,907.4	1,880.4	1%
Intermodal	1,116.2	1,035.2	8%	3,257.2	3,013.7	8%
Coal	255.8	266.6	(4%)	778.5	792.3	(2%)
Total	2,017.8	1,929.0	5%	5,943.1	5,686.4	5%



Revenue per Unit
Merchandise:
Chemicals	$	3,661	$	3,624	1%	$	3,626	$	3,586	1%
Agr./consumer/gov’t	2,756		2,626		5%	2,694		2,610		3%
Metals/construction	2,018		1,945		4%	2,025		1,959		3%
Automotive	2,486		2,256		10%	2,422		2,239		8%
Paper/clay/forest	2,867		2,699		6%	2,791		2,668		5%
Merchandise	2,690		2,550		5%	2,653		2,542		4%
Intermodal	669		600		12%	656		592		11%
Coal	1,812		1,687		7%	1,752		1,662		5%
Total	1,461		1,384		6%	1,441		1,386		4%

Railway operating revenues increased $277 million in the third quarter and $680 million for the first nine months compared with the same periods last year. The table below reflects the components of the revenue change by major commodity group ($ in millions).



	Third Quarter							First Nine Months
	Increase (Decrease)							Increase (Decrease)

	Merchandise		Intermodal		Coal			Merchandise		Intermodal		Coal

Volume	$	47	$	49	$	(18	)	$	68	$	144	$	(23	)
Fuel surcharge
revenue	41		49		8			84		125		12
Rate, mix and
other	49		27		25			127		84		59

Total	$	137	$	125	$	15		$	279	$	353	$	48

Most of our contracts include negotiated fuel surcharges, typically tied to either On-Highway Diesel (OHD) or West Texas Intermediate Crude Oil (WTI). Approximately 90% of our revenue base is covered by these negotiated fuel surcharges, with almost 75% tied to OHD. In the third quarter and first nine months of 2018, contracts tied to OHD accounted for about 90% of our fuel surcharge revenue. Revenues associated with these surcharges totaled $182 million and $84 million in the third quarters of 2018 and 2017, respectively, and $470 million and $249 million for the first nine months of 2018 and 2017, respectively.

Merchandise

Merchandise revenue grew in both periods. Higher average revenue per unit in both periods was driven by pricing gains and increased fuel surcharge revenue, and volume increased in all commodity groups with the exception of metals and construction and, for the year-to-date, automotive.

Chemicals volume grew significantly in both periods, driven by increased shipments of crude oil, rock salt, liquefied petroleum gas, and plastics. Lower shipments of coal ash in the first half of the year tempered volume growth for the first nine months.

Agriculture, consumer products, and government volume rose in both periods as increases in ethanol and fertilizer shipments more than offset declines in corn and soybean shipments.

Metals and construction traffic was down in both periods, the result of lower aggregates volume as well as decreases in iron and steel, scrap metal, and aluminum products traffic. Increased frac sand shipments for use in natural gas drilling in the Marcellus and Utica regions partially offset these decreases in the first nine months.

Automotive volume rose in the third quarter, but declined for the first nine months. The quarter’s growth was the result of increased equipment availability and shifts in shipment timing. The first nine months were negatively impacted by shortages in availability of multilevel equipment, automotive parts supplier production interruptions, and scheduled automotive plant downtime.

Paper, clay, and forest products volume increased slightly in both periods. Gains in pulpboard and municipal waste shipments, a result of tightened truck capacity and growth with existing customers, respectively, were partially offset by decreases in pulp, woodchip and graphic paper traffic.

Merchandise revenues for the fourth quarter are expected to continue to be higher year-over-year, reflecting higher average revenue per unit, driven by pricing gains and fuel surcharge revenues as well as higher volumes.

Intermodal

Intermodal revenues increased 20% in both periods driven by higher average revenue per unit, a result of increased fuel surcharge revenues and pricing gains, as well as strong volume growth.

Intermodal units (in thousands) by market were as follows:



	Third Quarter			First Nine Months
	2018	2017	% change	2018	2017	% change

Domestic	704.0	662.6	6%	2,082.2	1,890.6	10%
International	412.2	372.6	11%	1,175.0	1,123.1	5%

Total	1,116.2	1,035.2	8%	3,257.2	3,013.7	8%

Domestic volumes rose in both periods as a result of continued highway conversions due to tighter capacity in the truck market, higher truckload pricing, and growth in existing accounts. International volumes rose due to increased demand from existing accounts.

Intermodal revenues for the fourth quarter are expected to continue to increase compared to last year, driven by volume growth in addition to higher average revenue per unit due to increased fuel surcharge revenues and pricing gains.

Coal

Coal revenues rose in both periods, as higher average revenue per unit, primarily the result of pricing gains, was partially offset by volume decreases.

Coal tonnage (in thousands) by market was as follows:



	Third Quarter			First Nine Months
	2018	2017	% change	2018	2017	% change

Utility	16,213	17,410	(7%)	48,773	52,599	(7%)
Export	6,621	6,280	5%	21,775	19,189	13%
Domestic metallurgical	4,226	4,298	(2%)	11,624	11,647	—
Industrial	1,352	1,457	(7%)	4,069	4,259	(4%)

Total	28,412	29,445	(4%)	86,241	87,694	(2%)

Utility coal tonnage declined in both periods, driven by plant outages, decreased coal supply, lower network velocity and, for the first nine months, inclement weather in the first quarter. Export coal tonnage grew in both periods, a result of strong seaborne pricing that resulted in higher demand for U.S. coal. Domestic metallurgical coal tonnage dropped in the third quarter and was relatively flat for the first nine months due to customer sourcing changes. Increased market demand in the first half of the year tempered the decrease. Industrial coal tonnage decreased in both periods reflecting customer sourcing changes and pressure from natural gas conversions.

Coal revenues for the fourth quarter are expected to continue to increase compared to last year, a result of increased volumes, primarily in the export and utility markets, and higher average revenue per unit largely due to favorable mix and pricing gains.

Railway Operating Expenses

Railway operating expenses summarized by major classifications were as follows ($ in millions):



	Third Quarter					First Nine Months
	2018		2017		% change	2018		2017		% change

Compensation and benefits	$	725	$	771	(6%)	$	2,168	$	2,249	(4%)
Purchased services and rents	450		377		19%	1,281		1,146		12%
Fuel	274		198		38%	812		601		35%
Depreciation	276		265		4%	821		788		4%
Materials and other	202		164		23%	599		574		4%

Total	$	1,927	$	1,775	9%	$	5,681	$	5,358	6%

Compensation and benefits expense decreased in both periods, as follows:


•	incentive and stock-based compensation (down $45 million for the quarter and $19 million for the first nine months),


•	employment levels (down $10 million for the quarter and $51 million for the first nine months),


•	health and welfare benefit rates for agreement employees (down $8 million for the quarter and $25 million for the first nine months),


•	employment tax refund ($31 million benefit for the first nine months), and


•	overtime and recrews (up $15 million for the quarter and $47 million for the first nine months).

Average rail headcount for the quarter was down by about 320 compared with the third quarter 2017, and down almost 100 sequentially, as we have increased our train and engine employee hiring while decreasing headcount in other areas.

Purchased services and rents increased as follows ($ in millions):



	Third Quarter					First Nine Months
	2018		2017		% change	2018		2017		% change

Purchased services	$	347	$	309	12%	$	1,007	$	931	8%
Equipment rents	103		68		51%	274		215		27%

Total	$	450	$	377	19%	$	1,281	$	1,146	12%

The increase in purchased services in both periods was largely the result of higher intermodal volume-related costs, additional transportation and engineering activities as well as higher technology costs. Equipment rents rose in both periods, reflecting slower network velocity, the cost of additional short-term locomotive resources as well as growth in volume. We expect about half of these additional third quarter equipment rent cost increases to not occur in the fourth quarter.

Fuel expense, which includes the cost of locomotive fuel as well as other fuel used in railway operations, increased due primarily to higher locomotive fuel prices (up 33% in the third quarter and 30% in the first nine months) which increased expenses $65 million and $179 million, respectively, as well as increased consumption (up 4% in the third quarter and 3% in the first nine months).

Materials and other expenses increased as follows ($ in millions):



	Third Quarter					First Nine Months
	2018		2017		% change	2018		2017		% change

Materials	$	95	$	85	12%	$	277	$	264	5%
Casualties and other claims	46		39		18%	131		114		15%
Other	61		40		53%	191		196		(3%)

Total	$	202	$	164	23%	$	599	$	574	4%

Materials costs increased in both periods, due primarily to higher locomotive repair costs. Casualties and other claims expenses increased in both periods, largely a result of higher derailment-related costs. Other expense increased in the third quarter, but declined for the first nine months. Both periods reflected the inclusion of net rental income from operating property previously included in “Other income - net” of $20 million and $58 million, respectively. However, gains from sales of operating property were approximately $36 million higher for both periods of the prior year.

Other Income – Net

Other income – net decreased $9 million in the third quarter and $60 million for the first nine months. The decline in both periods was driven by the absence of net rental income as discussed above. An increase in non-operating property sales in the third quarter of 2018 mitigated the absence of net rental income.

Income Taxes

The third-quarter and year-to-date effective income tax rates were 22.7% and 22.6%, respectively, compared with 36.8% and 35.7% for the same periods last year, respectively. The declines resulted from the effects of the enactment of tax reform in late 2017 that lowered the federal corporate income tax rate. The current year-to-date effective tax rate also benefited from certain 2017 tax credits that were retroactively enacted by the Bipartisan Budget Act of 2018, which was signed into law in early 2018.

FINANCIAL CONDITION AND LIQUIDITY

Cash provided by operating activities, our principal source of liquidity, was $2.9 billion for the first nine months of 2018, compared with $2.5 billion for the same period of 2017, primarily a reflection of improved operating results. We had working capital deficits of $332 million at September 30, 2018, compared with $396 million at December 31, 2017. Cash and cash equivalents totaled $729 million at September 30, 2018. We expect cash on hand combined with cash provided by operating activities will be sufficient to meet our ongoing obligations.

In August of 2018, we issued $300 million of 3.65% senior notes due 2025, $400 million of 3.80% senior notes due 2028, $200 million of 4.15% senior notes due 2048, and $600 million of 5.10% senior notes due 2118. In February of 2018, we issued $500 million of 4.15% senior notes due 2048 (see Note 7). Other than these items, there have been no material changes to the information on future contractual obligations contained in our Form 10-K for the year ended December 31, 2017.

Cash used in investing activities was $1.1 billion for the first nine months of 2018, compared with $1.2 billion in the same period last year, reflecting higher investment sales.

Cash used in financing activities was $1.6 billion in the first nine months of 2018, compared with $1.5 billion in the same period last year, largely the result of higher repurchases of Common Stock, debt repayments, and dividend payments partially offset by increased proceeds from borrowings. We repurchased 12.8 million shares of Common Stock, (including shares retired under the ASR program, see Note 5) totaling $2.1 billion, in the first nine months of 2018, compared to 6.0 million shares, totaling $712 million, in the same period last year. The timing and volume of

future share repurchases will be guided by our assessment of market conditions and other pertinent factors. Any near-term purchases under the program are expected to be made with internally-generated cash, cash on hand, or proceeds from borrowings.

Our total-debt-to-total capitalization ratio was 41.8% at September 30, 2018, and 37.5% at December 31, 2017.

We have in place and available a $750 million credit agreement expiring in May 2021, which provides for borrowings at prevailing rates and includes covenants. We had no amounts outstanding under this facility at both September 30, 2018, and December 31, 2017, and are in compliance with all of its covenants. In June of 2018, we renewed and amended our accounts receivable securitization program from $350 million to $400 million on a 364-day term expiring in May 2019. We had no amounts outstanding under this program at September 30, 2018, and $100 million outstanding at December 31, 2017.

APPLICATION OF CRITICAL ACCOUNTING POLICIES

The preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. These estimates and assumptions may require judgment about matters that are inherently uncertain, and future events are likely to occur that may require us to make changes to these estimates and assumptions. Accordingly, we regularly review these estimates and assumptions based on historical experience, changes in the business environment, and other factors we believe to be reasonable under the circumstances. There have been no significant changes to the application of the critical accounting policies disclosure contained in our Form 10-K at December 31, 2017.

OTHER MATTERS

Labor Agreements

Approximately 80% of our railroad employees are covered by collective bargaining agreements with various labor unions. Pursuant to the Railway Labor Act, these agreements remain in effect until new agreements are reached, or until the bargaining procedures mandated by the Railway Labor Act are completed. We largely bargain nationally in concert with other major railroads, represented by the National Carriers Conference Committee. Moratorium provisions in the labor agreements govern when the railroads and unions may propose changes to the agreements.

The 2015 bargaining round is now complete with finalized agreements in place with all employees. All of the newly negotiated agreements have moratorium provisions that will reopen the agreements for negotiation beginning January 1, 2020.

New Accounting Pronouncements

For a detailed discussion of new accounting pronouncements, see Note 11.

Inflation

In preparing financial statements, GAAP requires the use of historical cost that disregards the effects of inflation on the replacement cost of property. We are a capital-intensive company with most of our capital invested in long-lived assets. The replacement cost of these assets, as well as the related depreciation expense, would be substantially greater than the amounts reported on the basis of historical cost.

FORWARD-LOOKING STATEMENTS

Certain statements in Management’s Discussion and Analysis of Financial Condition and Results of Operations are “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, as amended. These statements relate to future events or our future financial performance and involve known and unknown risks, uncertainties, and other factors that may cause our actual results, levels of activity, performance, or our achievements or those of our industry to be materially different from those expressed or implied by any forward-looking statements. In some cases, forward-looking statements can be identified by terminology such as “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “project,” “consider,” “predict,” “potential,” “feel,” or other comparable terminology. We have based these forward-looking statements on our current expectations, assumptions, estimates, beliefs, and projections. While we believe these expectations, assumptions, estimates, beliefs, and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which involve factors or circumstances that are beyond our control. These and other important factors, including those discussed under “Risk Factors” in our latest Form 10-K and herein, as well as our subsequent filings with the Securities and Exchange Commission, may cause actual results, performance, or achievements to differ materially from those expressed or implied by these forward-looking statements. The forward-looking statements herein are made only as of the date they were first issued, and unless otherwise required by applicable securities laws, we disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise. Copies of our press releases and additional information about us is available at www.norfolksouthern.com, or you can contact Norfolk Southern Corporation Investor Relations by calling 757-629-2861.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

The information required by this item is included in Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the heading “Financial Condition and Liquidity.”

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our Chief Executive Officer and Chief Financial Officer, with the assistance of management, evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (Exchange Act)) at September 30, 2018. Based on such evaluation, our officers have concluded that, at September 30, 2018, our disclosure controls and procedures were effective in alerting them on a timely basis to material information required to be included in our periodic filings under the Exchange Act.

Changes in Internal Control Over Financial Reporting

During the third quarter of 2018, we have not identified any changes in internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

Item 1A. Risk Factors.

The risk factors included in our 2017 Form 10-K remain unchanged and are incorporated herein by reference with the exception of the following:

Significant governmental legislation and regulation over commercial, operating and environmental matters could affect us, our customers, and the markets we serve. Congress can enact laws that could increase economic regulation of the industry. Railroads presently are subject to commercial regulation by the STB, which has jurisdiction to varying extents over rates, routes, customer access provisions, fuel surcharges, conditions of service, and the extension or abandonment of rail lines. The STB also has jurisdiction over the consolidation, merger, or acquisition of control of and by rail common carriers. Additional economic regulation of the rail industry by Congress or the STB, whether under new or existing laws, could have a significant negative impact on our ability to determine prices for rail services and on the efficiency of our operations. This potential material adverse effect could also result in reduced capital spending on our rail network or abandonment of lines.

Railroads are also subject to the enactment of laws by Congress and regulation by the Department of Transportation and the Department of Homeland Security (which regulate most aspects of our operations) related to safety and security. The Rail Safety Improvement Act of 2008 (RSIA), the Surface Transportation Extension Act of 2015, and the implementing regulations promulgated by the Federal Railroad Association (collectively “the PTC laws and regulations”) require us (and each other Class I railroad) to implement, on certain mainline track where intercity and commuter passenger railroads operate and where toxic inhalation hazardous materials are transported, an interoperable positive train control system (PTC). PTC is a set of highly advanced technologies designed to prevent train-to-train collisions, speed-related derailments, and certain other accidents caused by human error, but PTC will not prevent all types of train accidents or incidents. The PTC laws and regulations require us to install all hardware and to implement the PTC system on some of those rail lines by December 31, 2018, and to implement such system on the remainder of those rail lines by December 31, 2020. In addition, other railroads’ implementation schedules could impose additional interoperability requirements and accelerated timelines on us, which could impact our operations over other railroads if not met.

Full implementation of PTC will result in additional operating costs and capital expenditures, and PTC implementation may result in reduced operational efficiency and service levels, as well as increased compensation and benefits expenses, and increased claims and litigation costs.

Our operations are subject to extensive federal and state environmental laws and regulations concerning, among other things, emissions to the air; discharges to waterways or groundwater supplies; handling, storage, transportation, and disposal of waste and other materials; and the cleanup of hazardous material or petroleum releases. The risk of incurring environmental liability, for acts and omissions, past, present, and future, is inherent in the railroad business. This risk includes property owned by us, whether currently or in the past, that is or has been subject to a variety of uses, including our railroad operations and other industrial activity by past owners or our past and present tenants.

Environmental problems that are latent or undisclosed may exist on these properties, and we could incur environmental liabilities or costs, the amount and materiality of which cannot be estimated reliably at this time, with respect to one or more of these properties. Moreover, lawsuits and claims involving other unidentified environmental sites and matters are likely to arise from time to time.

Concern over climate change has led to significant federal, state, and international legislative and regulatory efforts to limit greenhouse gas (GHG) emissions. Restrictions, caps, taxes, or other controls on GHG emissions, including diesel exhaust, could significantly increase our operating costs, decrease the amount of traffic handled, and decrease the value of coal reserves we own.

In addition, legislation and regulation related to GHGs could negatively affect the markets we serve and our customers. Even without legislation or regulation, government incentives and adverse publicity relating to GHGs could negatively affect the markets for certain of the commodities we carry and our customers that (1) use commodities that we carry to produce energy, including coal, (2) use significant amounts of energy in producing or delivering the commodities we carry, or (3) manufacture or produce goods that consume significant amounts of energy.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.



	(a) Total Number of Shares (or Units)	(b) Average Price Paid per Share	(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or	(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that may yet be purchased under the Plans or
Period	Purchased⁽¹⁾	(or Unit)	Programs ^{(2) (3)}	Programs ⁽³⁾

July 1-31, 2018	659,655	157.04	657,377	51,004,923
August 1-31, 2018	6,548,145	169.93	6,544,993	44,459,930
September 1-30, 2018	802,299	180.29	801,933	43,657,997

Total	8,010,099		8,004,303


⁽¹⁾	Of this amount, 5,796 represent shares tendered by employees in connection with the exercise of options under the stockholder-approved Long-Term Incentive Plan.


⁽²⁾	Total number of shares purchased as part of publicly announced plans or programs includes 5.7 million shares purchased under the ASR (see Note 5).


⁽³⁾	On September 26, 2017, our Board of Directors authorized the repurchase of up to an additional 50 million shares of Common Stock through December 31, 2022. As of September 30, 2018, 43.7 million shares remain authorized for repurchase.

Item 6. Exhibits.




4.1	Second Supplemental Indenture, dated as of August 2, 2018, between the Registrant and U.S. Bank National Association, as Trustee. The Indenture is incorporated by reference herein to Exhibit 4.1 to Norfolk Southern Corporation’s Form 8-K filed August 2, 2018. SEC File No. 001-08339.

31-A*	Rule 13a-14(a)/15d-014(a) CEO Certifications.

31-B*	Rule 13a-14(a)/15d-014(a) CFO Certifications.

32*	Section 1350 Certifications.

101*	The following financial information from Norfolk Southern Corporation’s Quarterly Report on Form 10-Q for the third quarter of 2018, formatted in Extensible Business Reporting Language (XBRL) includes (i) the Consolidated Statements of Income for the third quarter and first nine months of 2018 and 2017; (ii) the Consolidated Statements of Comprehensive Income for the third quarter and first nine months of 2018 and 2017; (iii) the Consolidated Balance Sheets at September 30, 2018 and December 31, 2017; (iv) the Consolidated Statements of Cash Flows for the first nine months of 2018 and 2017; and (v) the Notes to Consolidated Financial Statements.

* Filed herewith.

SIGNATURES

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.



		NORFOLK SOUTHERN CORPORATION Registrant



Date:	October 24, 2018	/s/ Thomas E. Hurlbut
		Thomas E. Hurlbut Vice President and Controller (Principal Accounting Officer) (Signature)


Date:	October 24, 2018	/s/ Denise W. Hutson
		Denise W. Hutson Corporate Secretary (Signature)



Signed:	/s/ James A. Squires
	James A. Squires
	Chairman, President and Chief Executive Officer
	Norfolk Southern Corporation



Signed:	/s/ Cynthia C. Earhart
	Cynthia C. Earhart
	Executive Vice President Finance and Chief Financial Officer
	Norfolk Southern Corporation

Document And Entity Information	9 Months Ended
Document And Entity Information	Sep. 30, 2018 shares
Document And Entity Information [Abstract]
Entity Registrant Name	NORFOLK SOUTHERN CORP
Entity Central Index Key	0000702165
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding	272,346,940
Entity Emerging Growth Company	false
Entity Small Business	false

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Properties, accumulated depreciation	$ 12,276	$ 11,909
Common stock, par or stated value per share (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	1,350,000,000	1,350,000,000
Common stock, shares outstanding, net of treasury shares (in shares)	272,346,940	284,157,187

Stock Repurchase Programs	9 Months Ended
Stock Repurchase Programs	Sep. 30, 2018
Stock Repurchase Program [Abstract]
Stock Repurchase Programs	Stock Repurchase Programs We repurchased and retired 12.8 million shares (5.7 million shares under an accelerated stock repurchase program (ASR) and 7.1 million shares under our ongoing program) and 6.0 million shares of Common Stock under our stock repurchase programs in the first nine months of 2018 and 2017, respectively, at a cost of $2.1 billion and $712 million, respectively. We entered into an ASR on August 2, 2018 with two third-party financial institutions to repurchase Common Stock, at which time we made a payment of $1.2 billion to the financial institutions and received an initial delivery of 5.7 million shares valued at $960 million. The remaining balance of $240 million, included in “Additional paid-in capital” on the Consolidated Balance Sheets, will be settled no later than the end of January 2019, with the final number of shares to be delivered by the financial institutions equal to the volume-weighted average price per share of Common Stock over the ASR term, less a negotiated discount. Since the beginning of 2006, we have repurchased and retired 181.3 million shares at a total cost of $13.4 billion.


1.	I have reviewed this Quarterly Report on Form 10-Q of Norfolk Southern 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(s) 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


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.

Consolidated Statements Of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Railway operating revenues	$ 2,947	$ 2,670	$ 8,562	$ 7,882
Railway operating expenses:
Compensation and benefits	725	771	2,168	2,249
Purchased services and rents	450	377	1,281	1,146
Fuel	274	198	812	601
Depreciation	276	265	821	788
Materials and other	202	164	599	574
Total railway operating expenses	1,927	1,775	5,681	5,358
Income from railway operations	1,020	895	2,881	2,524
Other income – net	30	39	67	127
Interest expense on debt	142	134	409	416
Income before income taxes	908	800	2,539	2,235
Income taxes	206	294	575	799
Net income	$ 702	$ 506	$ 1,964	$ 1,436
Per share amounts:
Basic (in dollars per share)	$ 2.54	$ 1.76	$ 7.00	$ 4.96
Diluted (in dollars per share)	2.52	1.75	6.95	4.93
Dividends (in dollars per share)	$ 0.80	$ 0.61	$ 2.24	$ 1.83

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 729	$ 690
Accounts receivable – net	1,043	955
Materials and supplies	267	222
Other current assets	70	282
Total current assets	2,109	2,149
Investments	3,109	2,981
Properties less accumulated depreciation of $12,276 and $11,909 respectively	30,712	30,330
Other assets	392	251
Total assets	36,322	35,711
Current liabilities:
Accounts payable	1,394	1,401
Short-term debt	0	100
Income and other taxes	230	211
Other current liabilities	317	233
Current maturities of long-term debt	500	600
Total current liabilities	2,441	2,545
Long-term debt	10,635	9,136
Other liabilities	1,302	1,347
Deferred income taxes	6,464	6,324
Total liabilities	20,842	19,352
Stockholders’ equity:
Common stock $1.00 per share par value, 1,350,000,000 shares authorized; outstanding 272,346,940 and 284,157,187 shares, respectively, net of treasury shares	274	285
Additional paid-in capital	1,996	2,254
Accumulated other comprehensive loss	(435)	(356)
Retained income	13,645	14,176
Total stockholders’ equity	15,480	16,359
Total liabilities and stockholders’ equity	$ 36,322	$ 35,711

Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 1,964	$ 1,436
Reconciliation of net income to net cash provided by operating activities:
Depreciation	822	791
Deferred income taxes	138	219
Gains and losses on properties	(26)	(62)
Changes in assets and liabilities affecting operations:
Accounts receivable	(102)	(59)
Materials and supplies	(45)	12
Other current assets	45	68
Current liabilities other than debt	173	165
Other – net	(85)	(105)
Net cash provided by operating activities	2,884	2,465
Cash flows from investing activities:
Property additions	(1,326)	(1,315)
Property sales and other transactions	93	137
Investment purchases	(4)	(4)
Investment sales and other transactions	96	8
Net cash used in investing activities	(1,141)	(1,174)
Cash flows from financing activities:
Dividends	(627)	(529)
Common stock transactions	38	75
Purchase and retirement of common stock	(2,300)	(712)
Proceeds from borrowings – net of issuance costs	2,023	293
Debt repayments	(750)	(650)
Net cash used in financing activities	(1,616)	(1,523)
Net increase (decrease) in cash, cash equivalents, and restricted cash	127	(232)
Cash, cash equivalents, and restricted cash:
At beginning of year	690	956
At end of period	817	724
Supplemental disclosures of cash flow information:
Interest (net of amounts capitalized)	327	345
Income taxes (net of refunds)	$ 314	$ 594

Investments	9 Months Ended
Investments	Sep. 30, 2018
Investments [Abstract]
Investments	Investments Investment in Conrail Through a limited liability company, we and CSX Corporation (CSX) jointly own Conrail Inc. (Conrail), whose primary subsidiary is Consolidated Rail Corporation (CRC). We have a 58% economic and 50% voting interest in the jointly owned entity, and CSX has the remainder of the economic and voting interests. Our investment in Conrail was $1.3 billion at both September 30, 2018, and December 31, 2017. CRC owns and operates certain properties (the Shared Assets Areas) for the joint and exclusive benefit of Norfolk Southern Railway Company (NSR) and CSX Transportation, Inc. (CSXT). The costs of operating the Shared Assets Areas are borne by NSR and CSXT based on usage. In addition, NSR and CSXT pay CRC a fee for access to the Shared Assets Areas. “Purchased services and rents” and “Fuel” include amounts payable to CRC for the operation of the Shared Assets Areas totaling $38 million and $34 million for the third quarters of 2018 and 2017, respectively, and $112 million and $106 million for the first nine months of 2018 and 2017, respectively. Our equity in the earnings of Conrail, net of amortization, included in “Purchased services and rents” was $12 million and $10 million for the third quarters of 2018 and 2017, respectively, and $46 million and $30 million for the first nine months of 2018 and 2017, respectively. “Other liabilities” includes $280 million at both September 30, 2018, and December 31, 2017, for long-term advances from Conrail, maturing 2044, that bear interest at an average rate of 2.9%. Investment in TTX NS and eight other North American railroads jointly own TTX Company (TTX). NS has a 19.65% ownership interest in TTX, a railcar pooling company that provides its owner-railroads with standardized fleets of intermodal, automotive, and general use railcars at stated rates. Amounts paid to TTX for use of equipment are included in “Purchased services and rents” and amounted to $43 million and $58 million of expense for the third quarters of 2018 and 2017, respectively, and $176 million and $173 million for the first nine months of 2018 and 2017, respectively. Our equity in the earnings of TTX, also included in “Purchased services and rents,” totaled $16 million and $14 million for the third quarters of 2018 and 2017, respectively, and $49 million and $32 million for the first nine months of 2018 and 2017, respectively.

Debt	9 Months Ended
Debt	Sep. 30, 2018
Debt Disclosure [Abstract]
Debt	Debt During the third quarter of 2018, we issued $300 million of 3.65% senior notes due 2025, $400 million of 3.80% senior notes due 2028, $200 million of 4.15% senior notes due 2048, and $600 million of 5.10% senior notes due 2118. In June of 2018, we renewed and amended our accounts receivable securitization program from $350 million to $400 million on a 364-day term to run through May 2019. We had no amounts outstanding under this program at September 30, 2018 and $100 million outstanding at December 31, 2017, reflected as “Short-term debt” on the Consolidated Balance Sheets. During the first quarter of 2018, we issued $500 million of 4.15% senior notes due 2048. The “Cash, cash equivalents, and restricted cash” line item in the Consolidated Statements of Cash Flows includes restricted cash of $88 million at September 30, 2018 which reflects deposits held by a third party bond agent as collateral for certain debt obligations maturing in 2019. The restricted cash balance is included as part of “Other assets” on the Consolidated Balance Sheets.

Commitments And Contingencies	9 Months Ended
Commitments And Contingencies	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	Commitments and Contingencies Lawsuits We and/or certain subsidiaries are defendants in numerous lawsuits and other claims relating principally to railroad operations. When we conclude that it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, it is accrued through a charge to earnings. While the ultimate amount of liability incurred in any of these lawsuits and claims is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payment of such liability and claims. However, the final outcome of any of these lawsuits and claims cannot be predicted with certainty, and unfavorable or unexpected outcomes could result in additional accruals that could be significant to results of operations in a particular year or quarter. Any adjustments to the recorded liability will be reflected in earnings in the periods in which such adjustments become known. One of our chemical customers, Sunbelt Chlor Alkali Partnerships (Sunbelt), filed in 2011 a rate reasonableness complaint before the Surface Transportation Board (STB) alleging that our tariff rates for transportation of regulated movements are unreasonable. Since April 1, 2011, we have been billing and collecting amounts based on the challenged tariff rates. In 2014, the STB resolved this rate reasonableness complaint in our favor and, in June 2016, the STB resolved petitions for reconsideration. Sunbelt’s appeal of the STB’s decision to the United States Court of Appeal for the 11th Circuit was denied on January 26, 2018. This matter did not have a material effect on our financial position, results of operations, or liquidity. In 2007, various antitrust class actions filed against us and other Class I railroads in various Federal district courts regarding fuel surcharges were consolidated in the District of Columbia by the Judicial Panel on Multidistrict Litigation. In 2012, the court certified the case as a class action. The defendant railroads appealed this certification, and the Court of Appeals for the District of Columbia vacated the District Court’s decision and remanded the case for further consideration. On October 10, 2017, the District Court denied class certification; the findings are subject to appeal. We believe the allegations in the complaints are without merit and intend to vigorously defend the cases. We do not believe the outcome of these proceedings will have a material effect on our financial position, results of operations, or liquidity. Casualty Claims Casualty claims include employee personal injury and occupational claims as well as third-party claims, all exclusive of legal costs. To aid in valuing our personal injury liability and determining the amount to accrue with respect to such claims during the year, we utilize studies prepared by an independent consulting actuarial firm. Job-related personal injury and occupational claims are subject to the Federal Employer’s Liability Act (FELA), which is applicable only to railroads. FELA’s fault-based tort system produces results that are unpredictable and inconsistent as compared with a no-fault workers’ compensation system. The variability inherent in this system could result in actual costs being different from the liability recorded. While the ultimate amount of claims incurred is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payments of claims and is supported by the most recent actuarial study. In all cases, we record a liability when the expected loss for the claim is both probable and reasonably estimable. Employee personal injury claims – The largest component of casualties and other claims expense is employee personal injury costs. The independent actuarial firm engaged by us provides quarterly studies to aid in valuing our employee personal injury liability and estimating personal injury expense. The actuarial firm studies our historical patterns of reserving for claims and subsequent settlements, taking into account relevant outside influences. The actuarial firm uses the results of these analyses to estimate the ultimate amount of liability. We adjust the liability quarterly based upon our assessment and the results of the study. Our estimate of the liability is subject to inherent limitation given the difficulty of predicting future events such as jury decisions, court interpretations, or legislative changes. As a result, actual claim settlements may vary from the estimated liability recorded. Occupational claims – Occupational claims (including asbestosis and other respiratory diseases, as well as conditions allegedly related to repetitive motion) are often not caused by a specific accident or event but rather allegedly result from a claimed exposure over time. Many such claims are being asserted by former or retired employees, some of whom have not been employed in the rail industry for decades. The independent actuarial firm provides an estimate of the occupational claims liability based upon our history of claim filings, severity, payments, and other pertinent facts. The liability is dependent upon judgments we make as to the specific case reserves as well as judgments of the actuarial firm in the quarterly studies. The actuarial firm’s estimate of ultimate loss includes a provision for those claims that have been incurred but not reported. This provision is derived by analyzing industry data and projecting our experience. We adjust the liability quarterly based upon our assessment and the results of the study. However, it is possible that the recorded liability may not be adequate to cover the future payment of claims. Adjustments to the recorded liability are reflected in operating expenses in the periods in which such adjustments become known. Third-party claims – We record a liability for third-party claims including those for highway crossing accidents, trespasser and other injuries, automobile liability, property damage, and lading damage. The actuarial firm assists us with the calculation of potential liability for third-party claims, except lading damage, based upon our experience including the number and timing of incidents, amount of payments, settlement rates, number of open claims, and legal defenses. We adjust the liability quarterly based upon our assessment and the results of the study. Given the inherent uncertainty in regard to the ultimate outcome of third-party claims, it is possible that the actual loss may differ from the estimated liability recorded. Environmental Matters We are subject to various jurisdictions’ environmental laws and regulations. We record a liability where such liability or loss is probable and reasonably estimable. Environmental engineers regularly participate in ongoing evaluations of all known sites and in determining any necessary adjustments to liability estimates. Our Consolidated Balance Sheets include liabilities for environmental exposures of $59 million and $58 million at September 30, 2018 and December 31, 2017, respectively of which $15 million is classified as a current liability at both dates. At September 30, 2018, the liability represents our estimates of the probable cleanup, investigation, and remediation costs based on available information at 120 known locations and projects compared with 127 locations and projects at December 31, 2017. At September 30, 2018, 15 sites accounted for $38 million of the liability, and no individual site was considered to be material. We anticipate that much of this liability will be paid out over five years; however, some costs will be paid out over a longer period. At twelve locations, one or more of our subsidiaries in conjunction with a number of other parties have been identified as potentially responsible parties under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or comparable state statutes that impose joint and several liability for cleanup costs. We calculate our estimated liability for these sites based on facts and legal defenses applicable to each site and not solely on the basis of the potential for joint liability. With respect to known environmental sites (whether identified by us or by the Environmental Protection Agency or comparable state authorities), estimates of our ultimate potential financial exposure for a given site or in the aggregate for all such sites can change over time because of the widely varying costs of currently available cleanup techniques, unpredictable contaminant recovery and reduction rates associated with available cleanup technologies, the likely development of new cleanup technologies, the difficulty of determining in advance the nature and full extent of contamination and each potential participant’s share of any estimated loss (and that participant’s ability to bear it), and evolving statutory and regulatory standards governing liability. The risk of incurring environmental liability, for acts and omissions, past, present, and future, is inherent in the railroad business. Some of the commodities we transport, particularly those classified as hazardous materials, pose special risks that we work diligently to reduce. In addition, several of our subsidiaries own, or have owned, land used as operating property, or which is leased and operated by others, or held for sale. Because environmental problems that are latent or undisclosed may exist on these properties, there can be no assurance that we will not incur environmental liabilities or costs with respect to one or more of them, the amount and materiality of which cannot be estimated reliably at this time. Moreover, lawsuits and claims involving these and potentially other unidentified environmental sites and matters are likely to arise from time to time. The resulting liabilities could have a significant effect on our financial position, results of operations, or liquidity in a particular year or quarter. Based on our assessment of the facts and circumstances now known, we believe we have recorded the probable and reasonably estimable costs for dealing with those environmental matters of which we are aware. Further, we believe that it is unlikely that any known matters, either individually or in the aggregate, will have a material adverse effect on our financial position, results of operations, or liquidity. Insurance We obtain, on behalf of ourself and our subsidiaries, insurance for potential losses for third-party liability and first-party property damages. We are currently self-insured up to $50 million and above $1.1 billion ($1.5 billion for specific perils) per occurrence and/or policy year for bodily injury and property damage to third parties and up to $25 million and above $200 million per occurrence and/or policy year for property owned by us or in our care, custody, or control.

New Accounting Pronouncements	9 Months Ended
New Accounting Pronouncements	Sep. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, “Leases.” This update, effective for our annual and interim reporting periods beginning January 1, 2019, will replace existing lease guidance in GAAP and will require lessees to recognize lease assets and lease liabilities on the balance sheet for leases greater than twelve months and disclose key information about leasing arrangements. When implemented, lessees will be required to measure and record leases at the present value of the remaining lease payments. In July 2018, the FASB issued ASU 2018-11, “Leases (Topic 842): Targeted Improvements,” which created a new, optional transition method for implementing ASU 2016-02. We expect to use this new transition method, which permits the use of the effective date as the date of initial application. We disclosed $660 million in undiscounted operating lease obligations in our lease commitments footnote in our most recent 10-K, and have evaluated those contracts. We continue to evaluate other existing arrangements to determine if they qualify for lease accounting under the new standard. We are in the process of implementing a lease management system to support the new reporting requirements. We do not anticipate a material impact on our results of operations, and we will not adopt the standard early. In June 2016, the FASB issued ASU 2016-13, “Credit Losses - Measurement of Credit Losses on Financial Instruments,” which replaces the current incurred loss impairment method with a method that reflects expected credit losses. The new standard is effective as of January 1, 2020, and early adoption is permitted as of January 1, 2019. Because credit losses associated from our trade receivables have historically been insignificant, we do not expect this standard to have a material effect on our financial statements.

Railway Operating Revenues - Schedule of Account Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	$ 1,043	$ 955
Trade Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	781	703
Other Receivables
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	262	252
Other Assets \| Trade Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net, noncurrent	$ 53	$ 39

Stock-Based Compensation (Schedule of Grants and Weighted-Average Grant-Date Fair Values) (Details) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	0	40,960
Per-share grant-date fair value for options granted (in dollars per shares)	$ 0.00	$ 41.70
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants other than stock options (in shares)	570	217,290
Grant-date fair value of units granted (in shares)	$ 172.19	$ 148.37
PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants other than stock options (in shares)	400	92,314
Grant-date fair value of units granted (in shares)	$ 103.36	$ 91.60

Stock-Based Compensation (Narrative) (Details)	9 Months Ended
Stock-Based Compensation (Narrative) (Details)	Sep. 30, 2018
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	4 years
PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU Cycle	3 years

Earnings Per Share - Antidilutive Securities Excluded From Computation Of Earnings Per Share (Details) - shares shares in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0.0	0.3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive loss - beginning balance	$ (356)	$ (487)
Other comprehensive income (loss), before reclassifications, net of tax	(9)	(1)
Reclassification of stranded tax effects	(88)	0
Reclassification from accumulated other comprehensive income, current period, net of tax	18	13
Accumulated other comprehensive loss - ending balance	(435)	(475)
Pensions And Other Postretirement Liabilities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive loss, pensions and other postretirement benefit plans, net of tax - beginning balance	(300)	(414)
Other comprehensive income (loss), before reclassifications, net of tax	(11)	0
Reclassification of stranded tax effects	(86)	0
Other comprehensive income (loss), reclassification adjustment from AOCI, pension and other postretirement benefit plans, for net gain (loss), net of tax	18	13
Accumulated other comprehensive loss, pensions and other postretirement benefit plans, net of tax - ending balance	(379)	(401)
Accumulated Other Comprehensive Loss Equity Investees
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive loss - beginning balance	(56)	(73)
Other comprehensive income (loss), before reclassifications, net of tax	2	(1)
Reclassification of stranded tax effects	(2)	0
Reclassification from accumulated other comprehensive income, current period, net of tax	0	0
Accumulated other comprehensive loss - ending balance	$ (56)	$ (74)

Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)	$ (435)		$ (356)	$ (475)	$ (487)
Retained income	$ 13,645		$ 14,176
Accounting Standards Update 2018-02
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)		$ (88)
Retained income		$ 88

Stock Repurchase Programs (Details) - USD ($) shares in Millions, $ in Millions		9 Months Ended
	Aug. 02, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period (in shares)		12.8	6.0
Stock repurchased and retired during period, cost		$ 2,100	$ 712
Payments for repurchase of common stock		2,300	$ 712
Additional paid-in capital		$ 1,996		$ 2,254
Stock repurchased and retired since beginning of stock repurchase program in 2006 (in shares)		181.3
Stock repurchased and retired since beginning of stock repurchase program in 2006, cost		$ 13,400
Accelerated Stock Repurchase Program (ASR)
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period (in shares)		5.7
Stock repurchased and retired during period, cost		$ 960
Payments for repurchase of common stock	$ 1,200
Additional paid-in capital		$ 240
Ongoing Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period (in shares)		7.1

Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
Investments (Details) - USD ($) $ in Millions	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Equity Method Investee [Member]
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	58.00%		58.00%
Conrail Voting [Member]
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%
Conrail Inc [Member]
Schedule of Investments [Line Items]
Equity method investments	$ 1,300		$ 1,300		$ 1,300
Expenses from transactions with related party	38	$ 34	112	$ 106
Equity in the earnings of investee	12	10	46	30
Due to affiliate, noncurrent	$ 280		$ 280		$ 280
Due to affiliate, noncurrent, maturity date			2044		2044
Due to affiliate, average interest rate			2.90%		2.90%
TTX Company [Member]
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	19.65%		19.65%
Expenses from transactions with related party	$ 43	58	$ 176	173
Equity in the earnings of investee	$ 16	$ 14	$ 49	$ 32

Debt (Details) - USD ($)	3 Months Ended
Debt (Details) - USD ($)	Sep. 30, 2018	Mar. 31, 2018	May 31, 2018	Dec. 31, 2017
Senior Notes
Debt Instrument [Line Items]
Proceeds from isuance of long-term debt		$ 500,000,000
Interest rate, stated percentage		4.15%
Securitization Borrowings
Debt Instrument [Line Items]
Current borrowing capacity	$ 400,000,000		$ 350,000,000
Accounts receivable securitization balance	0			$ 100,000,000
3.65% Senior Notes Due 2025 \| Senior Notes
Debt Instrument [Line Items]
Proceeds from isuance of long-term debt	$ 300,000,000
Interest rate, stated percentage	3.65%
3.80% Senior Notes Due 2028 \| Senior Notes
Debt Instrument [Line Items]
Proceeds from isuance of long-term debt	$ 400,000,000
Interest rate, stated percentage	3.80%
4.15% Senior Notes Due 2048 \| Senior Notes
Debt Instrument [Line Items]
Proceeds from isuance of long-term debt	$ 200,000,000
Interest rate, stated percentage	4.15%
5.10% Senior Notes Due 2118 \| Senior Notes
Debt Instrument [Line Items]
Proceeds from isuance of long-term debt	$ 600,000,000
Interest rate, stated percentage	5.10%
Other Assets
Debt Instrument [Line Items]
Restricted cash	$ 88,000,000

Fair Value of Financial Instruments (Schedule Of Carrying Amounts And Estimated Fair Values) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long term investments, fair value	$ 39	$ 43
Long-term debt, including current maturities, fair value	(12,397)	(11,771)
Carrying Amount \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long term investments, fair value	21	26
Long-term debt, including current maturities, fair value	(11,135)	(9,736)
Fair Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long term investments, fair value	39	43
Long-term debt, including current maturities, fair value	$ (12,397)	$ (11,771)

Commitments And Contingencies (Details)	9 Months Ended
Commitments And Contingencies (Details)	Sep. 30, 2018 USD ($) location	Dec. 31, 2017 USD ($) location
Commitments and Contingencies Disclosure [Abstract]
Environmental liability	$ 59,000,000	$ 58,000,000
Current environmental liability	$ 15,000,000	$ 15,000,000
Known cleanup and remediation locations and projects \| location	120	127
Number of sites - representative sample \| location	15
Liability associated with those sites	$ 38,000,000
Environmental locations representative sample liability payout period, in years	5 years
Responsible locations with another party \| location	12
Self-insured injury/damage to third party - up to	$ 50,000,000
Self-insured injury/damage to third parties - and above, per occurrence	1,100,000,000.0
Self-insured injury/damage to third parties - and above, per occurrence for specific perils	1,500,000,000.0
Self-insured NS owned property - up to	25,000,000
Self-insured NS owned property - and above, per occurrence	$ 200,000,000

New Accounting Pronouncements - Adjustments for New Accounting Pronouncements (Narrative) (Details) $ in Millions	Dec. 31, 2017 USD ($)
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Operating leases, future minimum payments due	$ 660