Goodwill and Other Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets
Amortization	$ 9	$ 8
Goodwill and Other Intangible Assets
Accumulated Amortization	(142)		(135)
Intangible Assets Gross, Carrying Amount	646		619
Intangible Assets, Net Intangibles	504		484
Customer and distributor relationships
Goodwill and Other Intangible Assets
Carrying Amount	340		317
Accumulated Amortization	(81)		(75)
Net Intangibles	259		242
Proprietary technology
Goodwill and Other Intangible Assets
Carrying Amount	107		105
Accumulated Amortization	(30)		(29)
Net Intangibles	77		76
Trademarks
Goodwill and Other Intangible Assets
Carrying Amount	37		33
Accumulated Amortization	(14)		(14)
Net Intangibles	23		19
Patents and other
Goodwill and Other Intangible Assets
Carrying Amount	21		21
Accumulated Amortization	(17)		(17)
Net Intangibles	4		4
Indefinite-lived intangibles
Goodwill and Other Intangible Assets
Accumulated Amortization	0		0
Indefinite-lived intangibles	$ 141		$ 143