CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock Issued	Common Stock In Treasury	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2018	$ 36,586	$ 13,132	$ (4,006)	$ 31,658	$ (4,622)	$ 424
Net income (loss)	923			913		10
Currency translation adjustments	39				39
Pension and other postretirement benefit plans	39				39
Shares sold to optionees, less shares exchanged	21	(26)	47
Vesting of restricted stock		(126)	126
Shares issued under employee stock purchase plan	85	(115)	200
Stock repurchase program	(199)		(199)
Stock-based compensation expense	194	194
Dividends declared	(1,385)			(1,385)
Other	(30)	(22)	5			(13)
Balance at Jun. 30, 2019	36,273	13,037	(3,827)	31,186	(4,544)	421
Balance at Mar. 31, 2019	36,524	13,000	(3,756)	31,386	(4,527)	421
Net income (loss)	494			492		2
Currency translation adjustments	(37)				(37)
Changes in fair value of cash flow hedges	2				2
Pension and other postretirement benefit plans	18				18
Shares sold to optionees, less shares exchanged		(1)	1
Vesting of restricted stock		(26)	26
Stock repurchase program	(101)		(101)
Stock-based compensation expense	86	86
Dividends declared	(692)			(692)
Other	(21)	(22)	3			(2)
Balance at Jun. 30, 2019	36,273	13,037	(3,827)	31,186	(4,544)	421
Balance at Dec. 31, 2019	$ 24,176	$ 13,078	$ (3,631)	18,751	(4,438)	416
Balance, shares at Dec. 31, 2019	1,385	1,434
Treasury shares, Balance at Dec. 31, 2019			(49)
Net income (loss)	$ (10,796)			(10,810)		14
Currency translation adjustments	(108)				(106)	(2)
Changes in fair value of cash flow hedges	(226)				(226)
Pension and other postretirement benefit plans	$ 32				32
Vesting of restricted stock		$ (131)	$ 131
Vesting of restricted stock, shares	2		2
Shares issued under employee stock purchase plan	$ 85	(95)	$ 180
Shares issued under employee stock purchase plan, shares	2		2
Stock repurchase program	$ (26)		$ (26)
Stock repurchase program, shares	(1)		(1)
Stock-based compensation expense	$ 213	213
Dividends declared	(868)			(868)
Other	(26)	(21)	$ 7			(12)
Balance at Jun. 30, 2020	$ 12,456	$ 13,044	$ (3,339)	7,073	(4,738)	416
Balance, shares at Jun. 30, 2020	1,388	1,434
Treasury shares, Balance at Jun. 30, 2020			(46)
Balance at Mar. 31, 2020	$ 15,983	$ 12,963	$ (3,360)	10,681	(4,723)	422
Net income (loss)	(3,428)			(3,434)		6
Currency translation adjustments	20				19	1
Changes in fair value of cash flow hedges	(24)				(24)
Pension and other postretirement benefit plans	(10)				(10)
Vesting of restricted stock		(14)	14
Stock-based compensation expense	105	105
Dividends declared	(174)			(174)
Other	(16)	(10)	7			(13)
Balance at Jun. 30, 2020	$ 12,456	$ 13,044	$ (3,339)	$ 7,073	$ (4,738)	$ 416
Balance, shares at Jun. 30, 2020	1,388	1,434
Treasury shares, Balance at Jun. 30, 2020			(46)