Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income (loss)	$ 3,612	$ 946	$ (1,451)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	1,753	2,066	2,316
Impairments	7	60	144
Exploratory dry well costs and unproved property impairments	101	125	159
Net (gain) loss on disposal of assets	38	19	(9)
Loss on early extinguishment of debt	0	121	28
Deferred income taxes	(17)	(27)	(22)
Unrealized (gain) loss on derivative instruments, net	(18)	(16)	27
Pension and other post retirement benefits, net	(35)	(31)	(43)
Stock-based compensation	38	40	57
Equity method investments, net	(139)	(76)	210
Changes in:
Current receivables	9	(389)	367
Inventories	(45)	(1)	(4)
Current accounts payable and accrued liabilities	101	369	(381)
Other current assets and liabilities	(47)	46	75
All other operating, net	70	(13)	0
Net cash provided by operating activities	5,428	3,239	1,473
Investing activities:
Additions to property, plant and equipment	(1,450)	(1,046)	(1,343)
Additions to other assets	0	0	15
Acquisitions, net of cash acquired	(3,177)	(47)	(1)
Disposal of assets, net of cash transferred to the buyer	11	22	18
Equity method investments - return of capital	12	61	7
All other investing, net	(1)	0	1
Net cash used in investing activities	(4,605)	(1,010)	(1,303)
Financing activities:
Borrowings	1,500	0	400
Proceeds from revolving credit facility	450	0	0
Debt repayments	(35)	(1,400)	(500)
Debt extinguishment costs	0	(117)	(27)
Shares repurchased under buyback programs	(2,754)	(724)	(85)
Dividends paid	(220)	(141)	(64)
Purchases of shares for tax withholding obligations	(22)	(10)	(7)
All other financing, net	12	1	(3)
Net cash used in financing activities	(1,069)	(2,391)	(286)
Net increase (decrease) in cash and cash equivalents	(246)	(162)	(116)
Cash and cash equivalents at beginning of period	580	742	858
Cash and cash equivalents at end of period	$ 334	$ 580	$ 742