Goodwill And Acquired Intangibles (Schedule Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,512	$ 4,386
Accumulated Amortization	2,573	2,303
Distribution Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,879	2,445
Accumulated Amortization	1,101	943
Product Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	536	522
Accumulated Amortization	324	298
Customer Base [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,284	650
Accumulated Amortization	523	479
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	595	556
Accumulated Amortization	439	406
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	218	213
Accumulated Amortization	$ 186	$ 177