Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ 1,502	$ 1,675	$ 1,158
Adjustments to reconcile income (loss) from continuing operations to net cash provided by (used for) operating activities:
Depreciation, amortization and accretion	1,754	1,707	1,644
(Gains) losses on retirement of long-term obligations	0	28	145
Amortization of deferred financing costs and other non-cash interest	29	17	13
Stock-based compensation expense, net	157	156	129
Asset write-down charges	33	34	21
Deferred income tax (benefit) provision	8	3	4
Other non-cash adjustments, net	14	5	21
Changes in assets and liabilities, excluding the effects of acquisitions:
Increase (decrease) in accrued interest	36	0	(17)
Increase (decrease) in accounts payable	(14)	(5)	15
Increase (decrease) in other liabilities	(265)	(281)	(118)
Decrease (increase) in receivables	115	(49)	(113)
Decrease (increase) in other assets	(243)	(412)	(113)
Net cash provided by (used for) operating activities	3,126	2,878	2,789
Cash flows from investing activities:
Payments to Acquire Productive Assets	(1,424)	(1,310)	(1,229)
Payments for acquisitions, net of cash acquired	(96)	(35)	(111)
Other investing activities, net	1	(7)	8
Net cash provided by (used for) investing activities	(1,519)	(1,352)	(1,332)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	3,843	748	3,985
Principal payments on debt and other long-term obligations	79	74	1,076
Purchases and redemptions of long-term debt	750	1,274	2,089
Borrowings under revolving credit facility	3,613	3,495	1,245
Payments under revolving credit facility	4,248	2,855	870
Net issuances (repayments) under commercial paper program	(1,241)	976	(20)
Payments for financing costs	39	14	42
Purchases of common stock	30	65	70
Dividends/distributions paid on common stock	2,723	2,602	2,373
Net cash provided by (used for) financing activities	(1,654)	(1,665)	(1,310)
Net increase (decrease) in cash, cash equivalents, and restricted cash and cash equivalents from continuing operations	(47)	(139)	147
Cash Provided by (Used in) Operating Activities, Discontinued Operations	0	0	(62)
Net Cash Provided by (Used in) Discontinued Operations	0	0	(62)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	1	0	0
Cash, Cash Equivalents and Restricted Cash and Cash Equivalents - Beginning of Period	327	466	381
Cash, Cash Equivalents and Restricted Cash and Cash Equivalents - End of Period	$ 281	$ 327	$ 466