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, 2017	$ 37,261	$ 12,975	$ (4,049)	$ 32,190	$ (4,274)	$ 419
Net income	971			955		16
Currency translation adjustments	(82)				(81)	(1)
Changes in unrealized gain on marketable securities	(21)				(21)
Changes in fair value of cash flow hedges	(15)				(15)
Pension and other postretirement benefit plans	86				86
Shares sold to optionees, less shares exchanged	26	(27)	53
Vesting of restricted stock		(52)	52
Shares issued under employee stock purchase plan	107	(33)	140
Stock repurchase program	(200)		(200)
Stock-based compensation expense	176	176
Dividends declared	(1,385)			(1,385)
Other	(27)	(9)	3			(21)
Balance at Jun. 30, 2018	36,897	13,030	(4,001)	31,760	(4,305)	413
Balance at Mar. 31, 2018	37,326	12,998	(3,937)	32,022	(4,159)	402
Net income	441			430		11
Currency translation adjustments	(121)				(121)
Changes in unrealized gain on marketable securities	(40)				(40)
Changes in fair value of cash flow hedges	(16)				(16)
Pension and other postretirement benefit plans	31				31
Shares sold to optionees, less shares exchanged	6	(7)	13
Vesting of restricted stock		(23)	23
Stock repurchase program	(102)		(102)
Stock-based compensation expense	87	87
Dividends declared	(692)			(692)
Other	(23)	(25)	2
Balance at Jun. 30, 2018	36,897	13,030	(4,001)	31,760	(4,305)	413
Balance at Dec. 31, 2018	$ 36,586	$ 13,132	(4,006)	31,658	(4,622)	424
Balance, shares at Dec. 31, 2018	1,383	1,434
Treasury shares, Balance at Dec. 31, 2018	(51)
Net income	$ 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
Vesting of restricted stock, shares	1		1
Shares issued under employee stock purchase plan	$ 85	(115)	$ 200
Shares issued under employee stock purchase plan, shares	3		3
Stock repurchase program	$ (199)		$ (199)
Stock repurchase program, shares	(5)		(5)
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, shares at Jun. 30, 2019	1,383	1,434
Treasury shares, Balance at Jun. 30, 2019	(51)
Shares sold to optionees, less shares exchanged	1		1
Balance at Mar. 31, 2019	$ 36,524	$ 13,000	$ (3,756)	31,386	(4,527)	421
Net income	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, shares at Jun. 30, 2019	1,383	1,434
Treasury shares, Balance at Jun. 30, 2019	(51)