Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Millions	Total	Impact of adopting ASC 326	Common Stock	Capital In Excess of Par Value	Retained Earnings	Retained Earnings Impact of adopting ASC 326	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interests
Balances at Dec. 31, 2019	$ 12,037	$ (2)	$ 33	$ 2,820	$ 17,483	$ (2)	$ 156	$ (8,455)	$ 0
Balances (in shares) at Dec. 31, 2019			198,630
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,641				3,641
Other comprehensive income (loss)	214						214
Common stock repurchases (in shares)			19
Common stock repurchases	(30)			0				(30)
Dividends and dividend equivalents	(250)				(250)
Stock-based compensation	129			129
Restricted stock unit vesting	0		$ 0	(21)				21
Restricted stock unit vesting (in shares)			0
Stock option exercises	29		$ 0	12				17
Stock option exercises (in shares)			0
Balances at Sep. 30, 2020	15,768		$ 33	2,940	20,872		370	(8,447)	0
Balances (in shares) at Sep. 30, 2020			198,649
Balances at Jun. 30, 2020	14,416		$ 33	2,898	19,616		317	(8,448)	0
Balances (in shares) at Jun. 30, 2020			198,630
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,340				1,340
Other comprehensive income (loss)	53						53
Common stock repurchases (in shares)			19
Common stock repurchases	(5)			0				(5)
Dividends and dividend equivalents	(84)				(84)
Stock-based compensation	47			47
Restricted stock unit vesting	0		$ 0	(6)				6
Restricted stock unit vesting (in shares)			0
Stock option exercises	1		$ 0	1				0
Stock option exercises (in shares)			0
Balances at Sep. 30, 2020	15,768		$ 33	2,940	20,872		370	(8,447)	0
Balances (in shares) at Sep. 30, 2020			198,649
Balances at Dec. 31, 2020	13,728		$ 33	2,705	20,517		391	(9,918)	0
Balances (in shares) at Dec. 31, 2020			198,649
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,947				2,947
Acquisition	22								22
Other comprehensive income (loss)	(246)						(246)
Common stock repurchases	(36)			263				(299)
Dividends and dividend equivalents	(273)				(273)
Stock-based compensation	132			132
Restricted stock unit vesting	0		$ 0	(40)				40
Restricted stock unit vesting (in shares)			0
Stock option exercises	8		$ 0	4				4
Stock option exercises (in shares)			0
Balances at Sep. 30, 2021	16,282		$ 33	3,064	23,191		145	(10,173)	22
Balances (in shares) at Sep. 30, 2021			198,649
Balances at Jun. 30, 2021	14,843		$ 33	3,018	21,751		216	(10,175)	0
Balances (in shares) at Jun. 30, 2021			198,649
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,531				1,531
Acquisition	22								22
Other comprehensive income (loss)	(71)						(71)
Common stock repurchases	(3)			0				(3)
Dividends and dividend equivalents	(91)				(91)
Stock-based compensation	48			48
Restricted stock unit vesting	0		$ 0	(3)				3
Restricted stock unit vesting (in shares)			0
Stock option exercises	3		$ 0	1				2
Stock option exercises (in shares)			0
Balances at Sep. 30, 2021	$ 16,282		$ 33	$ 3,064	$ 23,191		$ 145	$ (10,173)	$ 22
Balances (in shares) at Sep. 30, 2021			198,649