Consolidated Statement of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock Issued	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non- controlling Interests
Stockholders' Equity, Attributable to Noncontrolling Interest							$ 219
Increase (Decrease) in Stockholders' Equity
Common stock, shares, Issued		378,597,000
Common Stock, Value, Issued at Dec. 31, 2016		$ 473
Additional Paid in Capital at Dec. 31, 2016			$ 600
Treasury Stock, Value at Dec. 31, 2016				$ (2,571)
Retained Earnings at Dec. 31, 2016					$ 4,870
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance at Dec. 31, 2016						$ (3,474)
Beginning Balance at Dec. 31, 2016	$ 117
Beginning Balance, treasury stock (in shares) at Dec. 31, 2016				22,029,000
Increase (Decrease) in Stockholders' Equity
Net income in stockholders' equity, excludes redeemable interests' share	2,319				2,278
Net Income (Loss) Attributable to Noncontrolling Interest	41						36
Other comprehensive income, net of tax, attributable to parent	2,833					555
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excludes Redeemable Interests' Share	2,314
Other comprehensive income, net of tax, attributable to noncontrolling interest	(76)						35
Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Non Contolling Interest, Excludes Redeemable Interests' Share	590
Stock-based awards exercised or vested	121		(89)	$ 210
Stock-based awards exercised or vested (in shares)				(1,926,000)
Shares repurchased (in shares)				7,388,000
Shares repurchased				$ (927)
Recognition of stock-based compensation	76		76
Dividends declared					$ (1,371)
Dividends declared per share					$ 3.88
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders							(37)
Dividends, Common Stock, Cash and Decrease from Distributions to Noncontrolling Interest Holders	1,408
Other	1		7		$ (8)
Ending Balance at Dec. 31, 2017	882
Common Stock, Value, Issued at Dec. 31, 2017		$ 473
Additional Paid in Capital at Dec. 31, 2017			594
Treasury Stock, Value at Dec. 31, 2017				$ (3,288)
Treasury stock (in shares) at Dec. 31, 2017				27,491,000
Retained Earnings at Dec. 31, 2017					5,769
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance at Dec. 31, 2017						(2,919)
Stockholders' Equity, Attributable to Noncontrolling Interest							253
Increase (Decrease) in Stockholders' Equity
Common stock, shares, Issued		378,597,000
Net income in stockholders' equity, excludes redeemable interests' share	1,445				1,410
Net Income (Loss) Attributable to Noncontrolling Interest	35						31
Other comprehensive income, net of tax, attributable to parent	1,186					(224)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excludes Redeemable Interests' Share	1,441
Other comprehensive income, net of tax, attributable to noncontrolling interest	(22)						(12)
Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Non Contolling Interest, Excludes Redeemable Interests' Share	(236)
Stock-based awards exercised or vested	62		(90)	$ 152
Stock-based awards exercised or vested (in shares)				(1,351,000)
Shares repurchased (in shares)				7,495,000
Shares repurchased				$ (820)
Recognition of stock-based compensation	39		39
Dividends declared					$ (1,391)
Dividends declared per share					$ 4
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders							(32)
Dividends, Common Stock, Cash and Decrease from Distributions to Noncontrolling Interest Holders	(1,423)
Other	(9)		5		$ 159	(156)	1
Ending Balance at Dec. 31, 2018	(46)
Common Stock, Value, Issued at Dec. 31, 2018	473	$ 473
Additional Paid in Capital at Dec. 31, 2018	548		548
Treasury Stock, Value at Dec. 31, 2018	$ (3,956)			$ (3,956)
Treasury stock (in shares) at Dec. 31, 2018	33,635,000			33,635,000
Retained Earnings at Dec. 31, 2018	$ 5,947				5,947
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance at Dec. 31, 2018	(3,299)					(3,299)
Stockholders' Equity, Attributable to Noncontrolling Interest							241
Increase (Decrease) in Stockholders' Equity
Common stock, shares, Issued		378,597,000
Net income in stockholders' equity, excludes redeemable interests' share	2,197				2,157
Net Income (Loss) Attributable to Noncontrolling Interest	40						37
Other comprehensive income, net of tax, attributable to parent	2,163					6
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excludes Redeemable Interests' Share	2,194
Other comprehensive income, net of tax, attributable to noncontrolling interest	(31)						(10)
Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Non Contolling Interest, Excludes Redeemable Interests' Share	(4)
Stock-based awards exercised or vested	229		(93)	$ 322
Stock-based awards exercised or vested (in shares)				(2,817,000)
Shares repurchased (in shares)				6,331,000
Shares repurchased				$ (820)
Recognition of stock-based compensation	94		94
Dividends declared					$ (1,415)
Dividends declared per share					$ 4.12
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders							(42)
Dividends, Common Stock, Cash and Decrease from Distributions to Noncontrolling Interest Holders	(1,457)
Other	(4)		7		$ (3)	(1)	1
Ending Balance at Dec. 31, 2019	194
Common Stock, Value, Issued at Dec. 31, 2019	473	$ 473
Additional Paid in Capital at Dec. 31, 2019	556		$ 556
Treasury Stock, Value at Dec. 31, 2019	$ (4,454)			$ (4,454)
Treasury stock (in shares) at Dec. 31, 2019	37,149,000			37,149,000
Retained Earnings at Dec. 31, 2019	$ 6,686				$ 6,686
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance at Dec. 31, 2019	$ (3,294)					$ (3,294)
Stockholders' Equity, Attributable to Noncontrolling Interest							$ 227
Increase (Decrease) in Stockholders' Equity
Common stock, shares, Issued	378,597,000	378,597,000