Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022		Jun. 30, 2021
Cash flows from operating activities:
Income (loss) from continuing operations	$ 842		$ 455
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by (used for) operating activities:
Depreciation, amortization and accretion	847		816
Gains (losses) on retirement of long-term obligations	26	[1]	144
Amortization of deferred financing costs and other non-cash interest, net	7		6
Stock-based compensation expense	83		67
Asset write-down charges	23		9
Deferred income tax (benefit) provision	1		3
Other non-cash adjustments, net	3		14
Changes in assets and liabilities, excluding the effects of acquisitions:
Increase (decrease) in accrued interest	(2)		(20)
Increase (decrease) in accounts payable	(8)		7
Increase (decrease) in other liabilities	(222)		(43)
Decrease (increase) in receivables	28		(3)
Decrease (increase) in other assets	(291)		(84)
Net cash provided by (used for) operating activities	1,337		1,371
Cash flows from investing activities:
Capital expenditures	(584)		(609)
Payments for acquisitions, net of cash acquired	(15)		(15)
Other investing activities, net	(10)		8
Net cash provided by (used for) investing activities	(609)		(616)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	748		3,985
Principal payments on debt and other long-term obligations	(36)		(1,038)
Purchases and redemptions of long-term debt	(1,274)		(1,789)
Borrowings under revolving credit facility	2,050		580
Payments under revolving credit facility	(1,565)		(870)
Net issuances (repayments) under commercial paper program	687		(210)
Payments for financing costs	(8)		(39)
Purchases of common stock	(63)		(68)
Dividends/distributions paid on common stock	(1,287)		(1,163)
Net cash provided by (used for) financing activities	(748)		(612)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(20)		143
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	0		1
Cash, cash equivalents and restricted cash at beginning of period	466		381
Cash, cash equivalents and restricted cash at end of period	$ 446		$ 525

[1] Inclusive of the write off of respective deferred financing costs.