Goodwill And Other Intangible Assets (Schedule Of Gross Carrying Amount Of Other Intangible Assets And Related Accumulated Amortization) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Goodwill And Other Intangible Assets [Line Items]
Reclassification of indefinite-lived IPR&D to definite-lived	$ 11
Gross Carrying Amount	1,021	1,000
Accumulated Amortization	357	313
Indefinite-lived intangible assets	158	169
Purchased Technology And Patents [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	931	922
Accumulated Amortization	306	276
Customer Lists And Relationships [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	60	48
Accumulated Amortization	36	25
Trademarks And Tradenames [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	24	24
Accumulated Amortization	11	8
Indefinite-lived intangible assets	49	49
Licenses, Distribution Agreements And Other [Member]
Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount	6	6
Accumulated Amortization	4	4
Acquired IPR&D [Member]
Goodwill And Other Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 109	$ 120