Consolidated Statements Of Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Shares	Non-Controlling Interests
Beginning balance at Dec. 31, 2015		$ 561	$ 861	$ 11,302	$ (4,220)	$ (1,991)	$ 89
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			44
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(63)			285
Other			0
Net income attributable to the Company	$ 1,795			1,768			27
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards				0	0
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards | Accounting Standards Update 2014-09				0
Dividend equivalents declared - (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(7)
Dividends declared – (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(675)
Other comprehensive (loss) income, net of tax	(873)				(873)
Purchase of treasury shares						(800)
Distributions and other changes							(22)
Deconsolidation of subsidiary							(14)
Ending balance at Dec. 31, 2016	6,272	561	842	12,388	(5,093)	(2,506)	80
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			63
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(120)			323
Other			(1)
Net income attributable to the Company	1,512			1,492			20
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards				0	0
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards | Accounting Standards Update 2014-09				0
Dividend equivalents declared - (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(6)
Dividends declared – (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(734)
Other comprehensive (loss) income, net of tax	1,050				1,050
Purchase of treasury shares						(900)
Distributions and other changes							(17)
Deconsolidation of subsidiary							0
Ending balance at Dec. 31, 2017	7,442	$ 561	784	13,140	(4,043)	(3,083)	83
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			66
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(35)			191
Other			2
Net income attributable to the Company	1,670			1,650			20
Net income attributable to the Company | Accounting Standards Update 2014-09	1,670
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards				0	(14)
Cumulative effect of adoption of new revenue recognition standard and other new accounting standards | Accounting Standards Update 2014-09				364
Dividend equivalents declared - (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(7)
Dividends declared – (per share amounts: $1.58 in 2018, $1.43 in 2017, and $1.30 in 2016)				(800)
Other comprehensive (loss) income, net of tax	(590)				(590)
Purchase of treasury shares						(675)
Distributions and other changes							(30)
Deconsolidation of subsidiary							0
Ending balance at Dec. 31, 2018	7,584		$ 817	$ 14,347	$ (4,647)	$ (3,567)	$ 73
Ending balance (Accounting Standards Update 2014-09) at Dec. 31, 2018	$ 7,584