Goodwill and Intangible Assets, Net (Schedule of Intangible Assets, Net) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Gross Asset Value
Acquisitions (Note 4)	$ 7	$ 33
Exchange rate changes	(14)	(35)
Gross asset value	680	687	689
Accumulated Amortization
Amortization	(62)	(61)	(77)
Exchange rate changes	14	21
Accumulated amortization	(483)	(435)	(395)
Net book value	197	252
Trademarks and Trade Names [Member]
Gross Asset Value
Acquisitions (Note 4)	0	9
Exchange rate changes	(2)	(4)
Gross asset value	86	88	83
Accumulated Amortization
Amortization	0	0
Exchange rate changes	0	0
Accumulated amortization	(5)	(5)	(5)
Net book value	81
Licenses [Member]
Gross Asset Value
Acquisitions (Note 4)	0	0
Exchange rate changes	2	1
Gross asset value	32	30	29
Accumulated Amortization
Amortization	(3)	(3)
Exchange rate changes	0	(1)
Accumulated amortization	(13)	(10)	(6)
Net book value	19
Customer-Related Intangible Assets [Member]
Gross Asset Value
Acquisitions (Note 4)	0	6
Exchange rate changes	(13)	(32)
Gross asset value	513	526	552
Accumulated Amortization
Amortization	(52)	(54)
Exchange rate changes	14	21
Accumulated amortization	(433)	(395)	(362)
Net book value	80
Developed Technology [Member]
Gross Asset Value
Acquisitions (Note 4)	7	7
Exchange rate changes	0	0
Gross asset value	27	20	13
Accumulated Amortization
Amortization	(3)	(1)
Exchange rate changes	0	1
Accumulated amortization	(14)	(11)	(11)
Net book value	13
Covenants Not to Compete and Other [Member]
Gross Asset Value
Acquisitions (Note 4)	0	11
Exchange rate changes	(1)	0
Gross asset value	22	23	12
Accumulated Amortization
Amortization	(4)	(3)
Exchange rate changes	0	0
Accumulated amortization	(18)	(14)	(11)
Net book value	$ 4