Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Trademarks	$ 1,217		$ 1,217		$ 1,107
Gross Carrying Amount	3,430		3,430		3,146
Accumulated Amortization	(1,331)		(1,331)		(1,163)
Net	2,099		2,099		1,983
Amortization of Intangible Assets	32	$ 31	95	$ 91
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	25		25
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	115		115
Finite-Lived Intangible Assets, Amortization Expense, Year Two	100		100
Finite-Lived Intangible Assets, Amortization Expense, Year Three	90		90
Finite-Lived Intangible Assets, Amortization Expense, Year Four	85		85
Finite-Lived Intangible Assets, Amortization Expense, Year Five	85		85
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	382		382
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	606		606		587
Accumulated Amortization	(481)		(481)		(446)
Net	125		125		141
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,405		1,405		1,272
Accumulated Amortization	(733)		(733)		(618)
Net	672		672		654
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	158		158		142
Accumulated Amortization	(84)		(84)		(71)
Net	74		74		71
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	44		44		38
Accumulated Amortization	(33)		(33)		(28)
Net	$ 11		$ 11		$ 10