Goodwill And Acquired Intangibles (Schedule Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,096	$ 4,001
Accumulated Amortization	2,046	1,834
Distribution Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,281	2,245
Accumulated Amortization	797	673
Product Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	503	503
Accumulated Amortization	271	244
Customer Base [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	595	600
Accumulated Amortization	436	403
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	523	455
Accumulated Amortization	376	357
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	194	198
Accumulated Amortization	$ 166	$ 157