Goodwill and Other Intangible Assets Other Intangibles Assets Related to the Acquisition of Cooper (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Fair Value of Intangible Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Total intangible assets at fair value for Cooper acquistion	4,577
Relief-from-royalty [Member] | Fair Value of Intangible Assets [Member] | Trade names indefinite lived [Member]
Indefinite-lived Intangible Assets [Line Items]
Trade names (indefinite-lived)	845
Relief-from-royalty [Member] | Trade Name [Member] | Fair Value of Intangible Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Trade names	307
Relief-from-royalty [Member] | Trade Name [Member] | Useful LIfe [Member] [Member]
Indefinite-lived Intangible Assets [Line Items]
Useful life	3-15
Customer relationship Cooper [Member] | Multi-period excess earnings [Member] | Fair Value of Intangible Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Customer relationships	2,780
Customer relationship Cooper [Member] | Multi-period excess earnings [Member] | Useful LIfe [Member] [Member]
Indefinite-lived Intangible Assets [Line Items]
Useful life	14-20
Technology Cooper [Member] | Relief-from-royalty [Member] | Fair Value of Intangible Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Technology	645
Technology Cooper [Member] | Relief-from-royalty [Member] | Useful LIfe [Member] [Member]
Indefinite-lived Intangible Assets [Line Items]
Useful life	8-15