Goodwill And Acquired Intangibles (Schedule Of Finite-Lived Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,335	$ 4,056
Accumulated Amortization	1,721	1,509
Distribution Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,132	1,915
Accumulated Amortization	388	295
Product Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	507	507
Accumulated Amortization	171	144
Customer Base [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	617	606
Accumulated Amortization	300	253
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	865	833
Accumulated Amortization	717	684
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	214	195
Accumulated Amortization	$ 145	$ 133