Consolidated Statements Of Equity (USD $) In Millions, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]	Treasury Shares [Member]	Non-Controlling Interests [Member]
Beginning balance at Dec. 31, 2011		$ 561	$ 1,156	$ 7,949	$ (3,188)	$ (595)	$ 57
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(16)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(34)			378
Purchase of subsidiary shares from non-controlling interests			1
Net income attributable to the Company	1,201			1,176			25
Dividend equivalents declared - (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(8)
Dividends declared – (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(489)
Other comprehensive (loss) income, net of tax	(119)				(119)
Issuance of shares for acquisitions						0
Purchase of treasury shares						(230)
Distributions							(16)
Other changes							(2)
Ending balance at Dec. 31, 2012	6,606	561	1,107	8,628	(3,307)	(447)	64
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(22)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(57)			481
Purchase of subsidiary shares from non-controlling interests			0
Net income attributable to the Company	1,385			1,357			28
Dividend equivalents declared - (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(6)
Dividends declared – (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(527)
Other comprehensive (loss) income, net of tax	686				686
Issuance of shares for acquisitions						1
Purchase of treasury shares						(550)
Distributions							(28)
Other changes							6
Ending balance at Dec. 31, 2013	7,975	561	1,028	9,452	(2,621)	(515)	70
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(15)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(83)			387
Purchase of subsidiary shares from non-controlling interests			0
Net income attributable to the Company	1,497			1,465			32
Dividend equivalents declared - (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(3)
Dividends declared – (per share amounts: $1.06 in 2014, $0.96 in 2013, and $0.90 in 2012)				(579)
Other comprehensive (loss) income, net of tax	(1,226)				(1,226)
Issuance of shares for acquisitions						3
Purchase of treasury shares						(800)
Distributions							(20)
Other changes							(3)
Ending balance at Dec. 31, 2014	$ 7,133	$ 561	$ 930	$ 10,335	$ (3,847)	$ (925)	$ 79