Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating Activities
Net income	$ 10,123	$ 9,280
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other operating gains	9,776	7,479
Share-based compensation	790	607
Noncash interest expense (income), net	310	289
Net (gain) loss on investment activity and other	(166)	118
Deferred income taxes	468	877
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	360	(225)
Film and television costs, net	(321)	64
Accounts payable and accrued expenses related to trade creditors	(1,149)	(85)
Other operating assets and liabilities	(729)	103
Net cash provided by operating activities	19,462	18,507
Investing Activities
Capital expenditures	(6,866)	(6,607)
Cash paid for intangible assets	(1,686)	(1,375)
Acquisitions and construction of real estate properties	(40)	(129)
Construction of Universal Beijing Resort	(736)	(257)
Acquisitions, net of cash acquired	(181)	(88)
Proceeds from sales of businesses and investments	208	127
Purchases of investments	(1,697)	(840)
Other	86	579
Net cash provided by (used in) investing activities	(10,912)	(8,590)
Financing Activities
Proceeds from (repayments of) short-term borrowings, net	(1,288)	2,909
Proceeds from borrowings	516	9,850
Proceeds from collateralized obligation	5,175	0
Repurchases and repayments of debt	(9,975)	(4,405)
Repurchases of common stock under repurchase program and employee plans	(432)	(4,282)
Dividends paid	(2,778)	(2,487)
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock	(235)	(209)
Other	191	(242)
Net cash provided by (used in) financing activities	(8,826)	1,134
Impact of foreign currency on cash, cash equivalents and restricted cash	(31)	0
Increase (decrease) in cash, cash equivalents and restricted cash	(307)	11,051
Cash, cash equivalents and restricted cash, beginning of period	3,909	3,571
Cash, cash equivalents and restricted cash, end of period	3,602	14,622
NBCUniversal Media LLC [Member]
Operating Activities
Net income	4,777	4,013
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,579	1,436
Net (gain) loss on investment activity and other	(12)	497
Deferred income taxes	(13)	21
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Current and noncurrent receivables, net	284	90
Film and television costs, net	(656)	69
Accounts payable and accrued expenses related to trade creditors	(180)	(123)
Other operating assets and liabilities	(367)	(165)
Net cash provided by operating activities	5,412	5,838
Investing Activities
Capital expenditures	(1,431)	(1,135)
Cash paid for intangible assets	(199)	(374)
Note receivable from Comcast	(3,238)	(1,522)
Construction of Universal Beijing Resort	(736)	(257)
Purchases of investments	(1,017)	(450)
Other	(5)	(45)
Net cash provided by (used in) investing activities	(6,626)	(3,783)
Financing Activities
Proceeds from borrowings	572	485
Proceeds from collateralized obligation	5,175	0
Repurchases and repayments of debt	(2,739)	(387)
Proceeds from (repayments of) borrowings from Comcast, net	(79)	(1,791)
Distributions to member	(1,775)	(1,228)
Distributions to noncontrolling interests	(183)	(163)
Other	(44)	(147)
Net cash provided by (used in) financing activities	927	(3,231)
Increase (decrease) in cash, cash equivalents and restricted cash	(287)	(1,176)
Cash, cash equivalents and restricted cash, beginning of period	1,464	2,377
Cash, cash equivalents and restricted cash, end of period	$ 1,177	$ 1,201