Condensed Consolidated Statement of Changes in Equity - USD ($)	Total	Common stock and paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive loss	$ (341,000,000)			$ (341,000,000)
Equity	13,317,000,000	$ 21,166,000,000	$ (7,151,000,000)		$ (357,000,000)
Common stock dividends	0.28
Net income	748,000,000		748,000,000
Share-based compensation	57,000,000	57,000,000
Other comprehensive income (loss)	144,000,000			144,000,000
Other comprehensive income (loss), attributable to parent	144,000,000
Common stock repurchases	(563,000,000)				(563,000,000)
Common stock dividends	(130,000,000)		(130,000,000)
Accumulated other comprehensive loss	(197,000,000)			(197,000,000)
Equity	13,573,000,000	21,223,000,000	(6,533,000,000)		(920,000,000)
Accumulated other comprehensive loss	(235,000,000)			(235,000,000)
Equity	13,494,000,000	21,245,000,000	(6,406,000,000)		(1,110,000,000)
Common stock dividends	0.41
Net income	973,000,000		973,000,000
Share-based compensation	77,000,000	77,000,000
Other comprehensive income (loss)	(531,000,000)			(531,000,000)
Other comprehensive income (loss), attributable to parent	(531,000,000)
Common stock repurchases	(630,000,000)				(630,000,000)
Common stock dividends	(179,000,000)		(179,000,000)
Accumulated other comprehensive loss	(781,000,000)			$ (781,000,000)
Equity	13,085,000,000	$ 21,322,000,000	$ (5,716,000,000)		$ (1,740,000,000)
Cumulative effect of changes in accounting principles, net of tax | Accounting Standards Update 2014-09	(126,000,000)
Cumulative effect of changes in accounting principles, net of tax | Accounting Standards Update 2016-01	(20,000,000)
Cumulative effect of changes in accounting principles, net of tax | Accounting Standards Update 2018-02	$ 42,000,000