Dispositions (Tables)

12 Months Ended

Dec. 31, 2018

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures

The following table contains select amounts reported in our historical consolidated statements of income and consolidated statements of cash flows as discontinued operations:

	Year Ended December 31,
(In millions)	2018		2017			2016
Total revenue and other income	$	—	$	431		$	863
Net gain (loss) on disposal of assets	—		(43		)	—
Total revenues and other income	—		388			863
Costs and expenses:
Production	—		254			601
Exploration	—		—			7
Depreciation, depletion and amortization	—		40			239
Impairments	—		6,636			—
Other	—		25			87
Total costs and expenses	—		6,955			934
Pretax income (loss) from discontinued operations	—		(6,567		)	(71		)
Provision (benefit) for income taxes	—		(1,674		)	(18		)
Income (loss) from discontinued operations	$	—	$	(4,893	)	$	(53	)

	Year Ended December 31,
(In millions)	2018		2017			2016
Cash flow from discontinued operations:
Operating activities	$	—	$	141		$	177
Investing activities	—		(13		)	(41		)
Changes in cash included in current assets held for sale	—		2			100
Net increase in cash and cash equivalents of discontinued operations	$	—	$	130		$	236