Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Trademarks	$ 1,131	$ 1,140
Gross Carrying Amount	2,472	2,278
Accumulated Amortization	(1,520)	(1,446)
Net	952	832
Intangible assets, gross (excluding goodwill)	3,603	3,418
Total Identifiable Intangible Assets	2,083	1,972
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	24
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	115
Finite-Lived Intangible Assets, Amortization Expense, Year Two	110
Finite-Lived Intangible Assets, Amortization Expense, Year Three	95
Finite-Lived Intangible Assets, Amortization Expense, Year Four	90
Finite-Lived Intangible Assets, Amortization Expense, Year Five	75
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	443
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	694	648
Accumulated Amortization	(536)	(515)
Net	158	133
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,525	1,396
Accumulated Amortization	(840)	(798)
Net	685	598
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	204	190
Accumulated Amortization	(105)	(96)
Net	99	94
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	49	44
Accumulated Amortization	(39)	(37)
Net	$ 10	$ 7