Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues and other income:
Revenues from contracts with customers	$ 1,024	$ 1,200
Net gain (loss) on commodity derivatives	202	(91)
Income (loss) from equity method investments	(12)	11
Net gain on disposal of assets	9	42
Other income	7	35
Total revenues and other income	1,230	1,197
Costs and expenses:
Production	160	187
Shipping, handling and other operating	144	154
Exploration	28	59
Depreciation, depletion and amortization	644	554
Impairments	97	6
Taxes other than income	66	72
General and administrative	76	94
Total costs and expenses	1,215	1,126
Income from operations	15	71
Net interest and other	(64)	(49)
Other net periodic benefit costs	0	5
Income (loss) before income taxes	(49)	27
Benefit for income taxes	(3)	(147)
Net income (loss)	$ (46)	$ 174
Net income (loss) per share:
Basic	$ (0.06)	$ 0.21
Per diluted share:
Diluted	$ (0.06)	$ 0.21
Weighted average common shares outstanding:
Basic	794	819
Diluted	794	820