Financial Instruments, Foreign Exchange Risk Management (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Foreign Exchange Contracts [Line Items]
Average Maturity of Foreign Exchange Hedging Contracts - within Three Months	72.00%
Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months	16.00%
Average Maturity of Foreign Exchange Hedging Contracts - within Six and Twelve Months	12.00%
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	$ 2,238
Fair Value Asset (Liability)	(40)	[1]
Foreign Currency Cash Flow Hedges [Abstract]
Net asset (Liability) fair value	(48)		(48)
U S Dollar / Euro [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	493
Fair Value Asset (Liability)	11	[1]
Japanese Yen/U.S. Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	486
Fair Value Asset (Liability)	(37)	[1]
Japanese Yen / Euro [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	359
Fair Value Asset (Liability)	(17)	[1]
Euro/U.K. Pound Sterling [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	183
Fair Value Asset (Liability)	(3)	[1]
U K Pound Sterling / Euro [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	149
Fair Value Asset (Liability)	3	[1]
Canadian Dollar/Euro [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	98
Fair Value Asset (Liability)	0	[1]
Mexican Peso / U. S. Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	72
Fair Value Asset (Liability)	3	[1]
Euro /U.S. Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	51
Fair Value Asset (Liability)	(1)	[1]
Indian Rupee/U.S. Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	51
Fair Value Asset (Liability)	2	[1]
Philippine Peso / U.S. Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	39
Fair Value Asset (Liability)	0	[1]
Euro Peruvian Nuevo Sol [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	23
Fair Value Asset (Liability)	(1)	[1]
U.S. Dollar Canadian Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	22
Fair Value Asset (Liability)	0	[1]
Euro / Swiss Franc Member
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	22
Fair Value Asset (Liability)	0	[1]
Swedish Kronor Euro [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	22
Fair Value Asset (Liability)	0	[1]
All Other [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	168
Fair Value Asset (Liability)	$ 0	[1]

[1] (1)Represents the net receivable (payable) amount included in the Condensed Consolidated Balance Sheet at March 31, 2013.