Financial Instruments - Income Statement (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Market value of hedge instruments	$ (58.0)	$ (79.5)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(3.8)
Foreign currency contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Market value of hedge instruments	(3.5)	(0.6)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(3.8)
Foreign currency contracts [Member] | Sales [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	5.3	(1.4)
Foreign currency contracts [Member] | Selling general and administrative expenses [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	0	0.5
Gain (loss) recognized in income (ineffective portion)	0	0
Foreign currency contracts [Member] | Selling general and administrative expenses Two [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) recognized in income (ineffective portion)	0	0
Foreign currency contracts [Member] | Cost of goods sold [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	3.5	(0.6)
Foreign currency contracts [Member] | Selling general and administrative expenses One [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) recognized in income (ineffective portion)	0.1	0
Net investment hedge contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Market value of hedge instruments	(54.5)	(78.9)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	0
Net investment hedge contracts [Member] | Interest expense [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) recognized in income (ineffective portion)	$ 2.3	$ 0.5