Financial Instruments - Income Statement (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Deferred losses reported in other comprehensive income (loss)
Deferred gain/(loss) in AOCI	$ (79.5)	$ (71.4)
Gain/(loss) expected to be reclassified to income in one year or less	(0.2)
Foreign currency contracts [Member]
Deferred losses reported in other comprehensive income (loss)
Deferred gain/(loss) in AOCI	(0.6)	(3.7)
Gain/(loss) expected to be reclassified to income in one year or less	(0.2)
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 into income, effective portion	(1.4)	(0.2)
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 into income, effective portion	0.5	(0.6)
Gain (loss) recognized in income, ineffective portion	0	0.9
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 into income, effective portion	(0.6)	(1.2)
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	0
Commodity contracts [Member]
Deferred losses reported in other comprehensive income (loss)
Deferred gain/(loss) in AOCI	0	1.6
Gain/(loss) expected to be reclassified to income in one year or less	0
Commodity 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 into income, effective portion	0	8.2
Gain (loss) recognized in income, ineffective portion	0	(0.2)
Cross-currency swap [Member] | Interest expense [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI into income, effective portion	0	0
Gain (loss) recognized in income, ineffective portion	0.5	(2.5)
Net investment hedge contracts [Member]
Deferred losses reported in other comprehensive income (loss)
Deferred gain/(loss) in AOCI	(78.9)	(69.3)
Gain/(loss) expected to be reclassified to income in one year or less	$ 0