Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues and other income:
Revenues from contracts with customers	$ 1,200	$ 1,537
Net loss on commodity derivatives	(91)	(102)
Income from equity method investments	11	37
Net gain on disposal of assets	42	257
Other income	35	4
Total revenues and other income	1,197	1,733
Costs and expenses:
Production	187	217
Shipping, handling and other operating	154	130
Exploration	59	52
Depreciation, depletion and amortization	554	590
Impairments	6	8
Taxes other than income	72	64
General and administrative	94	100
Total costs and expenses	1,126	1,161
Income from operations	71	572
Net interest and other	(49)	(45)
Other net periodic benefit costs	5	(3)
Income before income taxes	27	524
Provision (benefit) for income taxes	(147)	168
Net income	$ 174	$ 356
Net income per share:
Basic	$ 0.21	$ 0.42
Per diluted share:
Diluted	$ 0.21	$ 0.42
Weighted average common shares outstanding:
Basic	819	851
Diluted	820	852