Financial Instruments, Foreign Exchange Risk Management (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Foreign Exchange Contracts [Line Items]
Average Maturity of Foreign Exchange Hedging Contracts - within Three Months	85.00%
Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months	8.00%
Average Maturity of Foreign Exchange Hedging Contracts - within Six and Twelve Months	7.00%
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	$ 3,205
Foreign Currency Cash Flow Hedges [Abstract]
Derivative Assets (Liabilities), at Fair Value, Net	1		(64)
Euro/U.K. Pound Sterling
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	703
Japanese Yen/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	480
U.S. Dollar/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	415
Canadian Dollar/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	380
Japanese Yen/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	349
Euro/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	284
U.K. Pound Sterling/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	158
Swiss Franc/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	62
Philippine Peso/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	62
Mexican Peso/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	51
Indian Rupee/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	49
Euro/Danish Krone
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	25
Mexican Peso/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	22
Euro / Canadian Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	22
U.S. Dollar Canadian Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	21
All Other
Summary of Foreign Exchange Hedging Positions [Abstract]
Gross Notional Value	122
Foreign Exchange Contract [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	1	[1]
Foreign Exchange Contract [Member] | Euro/U.K. Pound Sterling
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(13)	[1]
Foreign Exchange Contract [Member] | Japanese Yen/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(27)	[1]
Foreign Exchange Contract [Member] | U.S. Dollar/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	14	[1]
Foreign Exchange Contract [Member] | Canadian Dollar/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	26	[1]
Foreign Exchange Contract [Member] | Japanese Yen/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(1)	[1]
Foreign Exchange Contract [Member] | Euro/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	1	[1]
Foreign Exchange Contract [Member] | U.K. Pound Sterling/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	2	[1]
Foreign Exchange Contract [Member] | Swiss Franc/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	0	[1]
Foreign Exchange Contract [Member] | Philippine Peso/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(1)	[1]
Foreign Exchange Contract [Member] | Mexican Peso/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(1)	[1]
Foreign Exchange Contract [Member] | Indian Rupee/U.S. Dollar
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	0	[1]
Foreign Exchange Contract [Member] | Euro/Danish Krone
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	0	[1]
Foreign Exchange Contract [Member] | Mexican Peso/Euro
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	1	[1]
Foreign Exchange Contract [Member] | Euro / Canadian Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	(1)	[1]
Foreign Exchange Contract [Member] | U.S. Dollar Canadian Dollar [Member]
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	0	[1]
Foreign Exchange Contract [Member] | All Other
Summary of Foreign Exchange Hedging Positions [Abstract]
Derivative, Fair Value, Net	1	[1]
Designated as Hedging Instrument [Member]
Foreign Currency Cash Flow Hedges [Abstract]
Derivative Assets (Liabilities), at Fair Value, Net	16		(50)
Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Foreign Currency Cash Flow Hedges [Abstract]
Derivative Assets (Liabilities), at Fair Value, Net	$ 16		$ (50)

[1] Represents the net receivable (payable) amount included in the Condensed Consolidated Balance Sheet at September 30, 2014.