Fair Value of Financial Instruments (Details) (USD $)																																																3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended														3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Buy EUR [Member]	Sep. 30, 2012 Buy GBP [Member]	Sep. 30, 2012 Buy NOK [Member]	Sep. 30, 2012 Buy SGD [Member]	Sep. 30, 2012	Sep. 30, 2012 Sell EUR [Member]	Sep. 30, 2012 Sell GBP [Member]	Sep. 30, 2012 Sell NOK [Member]	Sep. 30, 2012 Sell SGD [Member]	Sep. 30, 2012	Sep. 30, 2012 2012 [Member] Buy EUR [Member]	Sep. 30, 2012 2012 [Member] Buy GBP [Member]	Sep. 30, 2012 2012 [Member] Buy NOK [Member]	Sep. 30, 2012 2012 [Member] Buy SGD [Member]	Sep. 30, 2012 2012 [Member]	Sep. 30, 2012 2012 [Member] Sell EUR [Member]	Sep. 30, 2012 2012 [Member] Sell GBP [Member]	Sep. 30, 2012 2012 [Member] Sell NOK [Member]	Sep. 30, 2012 2012 [Member] Sell SGD [Member]	Sep. 30, 2012 2012 [Member]	Sep. 30, 2012 2013 [Member] Buy EUR [Member]	Sep. 30, 2012 2013 [Member] Buy GBP [Member]	Sep. 30, 2012 2013 [Member] Buy NOK [Member]	Sep. 30, 2012 2013 [Member] Buy SGD [Member]	Sep. 30, 2012 2013 [Member]	Sep. 30, 2012 2013 [Member] Sell EUR [Member]	Sep. 30, 2012 2013 [Member] Sell GBP [Member]	Sep. 30, 2012 2013 [Member] Sell NOK [Member]	Sep. 30, 2012 2013 [Member] Sell SGD [Member]	Sep. 30, 2012 2013 [Member]	Sep. 30, 2012 2014 [Member] Buy EUR [Member]	Sep. 30, 2012 2014 [Member] Buy GBP [Member]	Sep. 30, 2012 2014 [Member] Buy NOK [Member]	Sep. 30, 2012 2014 [Member] Buy SGD [Member]	Sep. 30, 2012 2014 [Member]	Sep. 30, 2012 2014 [Member] Sell EUR [Member]	Sep. 30, 2012 2014 [Member] Sell GBP [Member]	Sep. 30, 2012 2014 [Member] Sell NOK [Member]	Sep. 30, 2012 2014 [Member] Sell SGD [Member]	Sep. 30, 2012 2014 [Member]	Sep. 30, 2012 2015 [Member] Sell EUR [Member]	Sep. 30, 2012 2015 [Member] Sell GBP [Member]	Sep. 30, 2012 2015 [Member] Sell NOK [Member]	Sep. 30, 2012 2015 [Member] Sell SGD [Member]	Sep. 30, 2012 2015 [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Revenues [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Revenues [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Revenues [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Revenues [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Cost of goods sold [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Cost of goods sold [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Cost of goods sold [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Cost of goods sold [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Depreciation expense [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Depreciation expense [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Depreciation expense [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Depreciation expense [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Sep. 30, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current assets [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current assets [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current assets [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current assets [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current liabilities [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current liabilities [Member]	Sep. 30, 2012 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current liabilities [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current liabilities [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Cost of goods sold [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Cost of goods sold [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Cost of goods sold [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Cost of goods sold [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Other costs [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Other costs [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Other costs [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Other costs [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Interest, net [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Interest, net [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Interest, net [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Interest, net [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Equity Call Option [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Equity Call Option [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Equity Call Option [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Equity Call Option [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Equity Call Option [Member] Other costs [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Equity Call Option [Member] Other costs [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Equity Call Option [Member] Other costs [Member]	Sep. 30, 2011 Not Designated as Hedging Instrument [Member] Equity Call Option [Member] Other costs [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current assets [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current assets [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current assets [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current assets [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current liabilities [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Current liabilities [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current liabilities [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Foreign exchange contracts [Member] Non-current liabilities [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Current assets [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Current assets [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Non-current assets [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Non-current assets [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Current liabilities [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Current liabilities [Member]	Sep. 30, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Non-current liabilities [Member]	Dec. 31, 2011 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Non-current liabilities [Member]	Sep. 30, 2012 Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Estimate of Fair Value, Fair Value Disclosure [Member]	Sep. 30, 2012 Carrying (Reported) Amount, Fair Value Disclosure [Member]	Dec. 31, 2011 Carrying (Reported) Amount, Fair Value Disclosure [Member]	Sep. 30, 2012 Fair value based on quoted prices in active markets for identical assets (Level 1) [Member]	Dec. 31, 2011 Fair value based on quoted prices in active markets for identical assets (Level 1) [Member]	Sep. 30, 2012 Fair value based on significant other observable inputs (Level 2) [Member]	Dec. 31, 2011 Fair value based on significant other observable inputs (Level 2) [Member]	Sep. 30, 2012 Fair value based on significant unobservable inputs (Level 3) [Member]	Dec. 31, 2011 Fair value based on significant unobservable inputs (Level 3) [Member]
Cash and cash equivalents [Abstract]
Cash	$ 410,600	$ 491,700																																																																																																																						$ 410,600	$ 491,700	$ 0	$ 0	$ 0	$ 0
Money market funds	420,500	133,400																																																																																																																						420,500	133,400	0	0	0	0
Certificate of deposit	200	0																																																																																																																						200	0	0	0	0	0
Commercial paper	91,000	140,400																																																																																																																						0	0	91,000	140,400	0	0
U.S.non-governmental agency asset-backed securities	27,700	27,800																																																																																																																						0	0	27,700	27,800	0	0
U.S. corporate obligations	5,600	29,100																																																																																																																						5,600	29,100	0	0	0	0
U.S. Treasury securities	1,400	0																																																																																																																						1,400	0	0	0	0
Non U.S. bank and other obligations	33,700	76,500																																																																																																																						33,700	76,500	0	0	0	0
Short-term investments [Abstract]
Commercial paper	211,000	213,500																																																																																																																						0	0	211,000	213,500	0	0
U.S. Treasury securities	0	10,100																																																																																																																						0	10,100	0	0	0	0
U.S. non-governmental agency asset-backed securities	68,700	77,300																																																																																																																						0	0	68,700	77,300	0	0
U.S. corporate obligations	84,400	122,600																																																																																																																						84,400	122,600	0	0	0	0
Derivatives, net asset (liability) [Abstract]
Foreign currency contracts	(100)	(13,800)																																																																																																																						0	0	(100)	(13,800)	0	0
Interest rate contracts	0	1,400																																																																																																																						0	0	0	1,400	0	0
Total financial instruments	1,354,700	1,310,000																																																																																																																						956,400	863,400	398,300	446,600	0	0
Derivatives, Fair Value [Line Items]
Fixed-rate debt																																																																																																																				2,050,000,000	1,470,000,000	1,750,000,000	1,250,000,000
Derivative Asset, Fair Value	12,200,000	5,800,000																																																																		10,600,000	1,900,000	9,700,000	1,900,000	900,000	0					1,600,000	3,900,000																					1,600,000	2,500,000	0	0					0	1,400,000	0	0
Derivative Liability, Fair Value	12,300,000	18,200,000																																																																		8,500,000	7,600,000					6,400,000	7,000,000	2,100,000	600,000	3,800,000	10,600,000																									3,800,000	10,600,000	0	0					0	0	0	0
Derivative [Line Items]
Notional Amount			166,800,000	35,200,000	1,631,200,000	10,000,000	45,300,000	(32,800,000)	(40,600,000)	(535,600,000)	0	(156,400,000)	83,700,000	34,000,000	458,400,000	0	17,800,000	(25,000,000)	(33,100,000)	(140,700,000)	0	(41,800,000)	65,300,000	1,100,000	1,016,600,000	10,000,000	27,300,000	(7,800,000)	(7,200,000)	(394,500,000)	0	(113,600,000)	17,800,000	100,000	156,200,000	0	200,000	0	(300,000)	(400,000)	0	(500,000)	0	0	0	0	(500,000)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Pre-Tax Gain (Loss) Recognized in OCI on Derivatives																																																4,600,000	(7,100,000)	200,000	(4,200,000)													4,600,000	(7,100,000)	200,000	(4,200,000)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income																																																(3,500,000)	(1,100,000)	(10,400,000)	(5,800,000)	(3,500,000)	600,000	(5,500,000)	2,500,000	0	(1,700,000)	(4,800,000)	(8,200,000)	0	0	(100,000)	(100,000)
Amount of Gain (Loss) Recognized in Income on Derivatives																																																0	(300,000)	(500,000)	(700,000)					0	(300,000)	(500,000)	(700,000)
Gain (loss) recognized on derivatives not designated as hedging																																																																																$ 0	$ (1,400,000)	$ 500,000	$ (2,200,000)	$ 7,600,000	$ (6,400,000)	$ 13,200,000	$ (6,400,000)	$ 0	$ 0	$ 0	$ (200,000)	$ 7,600,000	$ (21,600,000)	$ 13,700,000	$ (21,000,000)	$ 0	$ (13,800,000)	$ 0	$ (12,200,000)