Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Trademarks	$ 1,216		$ 1,216		$ 1,107
Gross Carrying Amount	3,395		3,395		3,146
Accumulated Amortization	(1,277)		(1,277)		(1,163)
Net	2,118		2,118		1,983
Amortization of Intangible Assets	32	$ 30	63	$ 60
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	57		57
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	370		370
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	602		602		587
Accumulated Amortization	(470)		(470)		(446)
Net	132		132		141
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,378		1,378		1,272
Accumulated Amortization	(696)		(696)		(618)
Net	682		682		654
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	156		156		142
Accumulated Amortization	(80)		(80)		(71)
Net	76		76		71
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43		43		38
Accumulated Amortization	(31)		(31)		(28)
Net	$ 12		$ 12		$ 10