Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net earnings (loss)	$ (90)	$ 109	$ (2,573)	$ 287
Adjustments to reconcile net earnings (loss) to net cash from operating activities:
Net (earnings) loss from discontinued operations, net of income taxes	(13)	27	103	(378)
Depreciation, depletion and amortization	299	381	999	1,115
Asset impairments			2,666
Leasehold impairments	36	13	149	15
Accretion on discounted liabilities	8	8	24	25
Total (gains) losses on commodity derivatives	87	(127)	(272)	338
Cash settlements on commodity derivatives	10	71	343	125
Gains on asset dispositions		(1)		(48)
Deferred income tax expense (benefit)		52	(311)	2
Share-based compensation	31	23	70	92
Other	1	3	5	(9)
Changes in assets and liabilities, net	58	36	(97)	(100)
Net cash from operating activities - continuing operations	427	595	1,106	1,464
Cash flows from investing activities:
Capital expenditures	(204)	(526)	(936)	(1,502)
Acquisitions of property and equipment		(5)	(5)	(28)
Divestitures of property and equipment	1	9	29	347
Net cash from investing activities - continuing operations	(203)	(522)	(912)	(1,183)
Cash flows from financing activities:
Repayments of long-term debt				(162)
Repurchases of common stock		(561)	(38)	(1,746)
Dividends paid on common stock	(43)	(35)	(119)	(106)
Contributions from noncontrolling interests	1		12
Distributions to noncontrolling interests	(4)		(10)
Shares exchanged for tax withholdings and other		(1)	(17)	(23)
Net cash from financing activities - continuing operations	(46)	(597)	(172)	(2,037)
Net change in cash, cash equivalents and restricted cash of continuing operations	178	(524)	22	(1,756)
Cash flows from discontinued operations:
Operating activities	45	(94)	(129)	37
Investing activities	1	(5)	171	2,472
Financing activities	0	(1,571)	0	(1,579)
Effect of exchange rate changes on cash	4	(3)	(11)	36
Net change in cash, cash equivalents and restricted cash of discontinued operations	50	(1,673)	31	966
Net change in cash, cash equivalents and restricted cash	228	(2,197)	53	(790)
Cash, cash equivalents and restricted cash at beginning of period	1,669	3,853	1,844	2,446
Cash, cash equivalents and restricted cash at end of period	1,897	1,656	1,897	1,656
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	1,707	1,375	1,707	1,375
Cash restricted for discontinued operations	190	280	190	280
Restricted cash included in other current assets		1		1
Cash, cash equivalents and restricted cash at end of period	$ 1,897	$ 1,656	$ 1,897	$ 1,656

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