Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Assets:
Assets, Valuation Techniques	A	A
Fair Value Assets Measured on Recurring Basis Other Assets Assets Valuation Techniques	C
Liabilities:
Liabilities, Valuation Techniques	A	A
Fair Value, Inputs, Level 1 [Member]
Assets:
Foreign exchange contracts	0	0
Long-term insurance note receivable	0
Liabilities:
Foreign exchange contracts	0	0
Net investment hedge contracts	0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
Foreign exchange contracts	3.0	2.7
Long-term insurance note receivable	21.0
Liabilities:
Foreign exchange contracts	11.2	6.4
Net investment hedge contracts	82.3	75.7
Fair Value, Inputs, Level 3 [Member]
Assets:
Foreign exchange contracts	0	0
Long-term insurance note receivable	0
Liabilities:
Foreign exchange contracts	0	0
Net investment hedge contracts	0	0
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets:
Foreign exchange contracts	3.0	2.7
Long-term insurance note receivable	21.0
Liabilities:
Foreign exchange contracts	11.2	6.4
Net investment hedge contracts	82.3	75.7