Financial Information for Subsidiary and Guarantor Parent (Comp Inc.) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
StatementOfIncomeAndComprehensiveIncomeAbstract
Net income (loss)	$ 11.6	$ 58.3
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	(13.0)	9.4
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0.1	0.1
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	8.4	(9.7)
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax	(18.2)	(16.7)
Other Comprehensive Income Loss Net Of Tax	13.7	16.5
Comprehensive income (loss)	25.3	74.8
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2.1	2.7
Comprehensive Income Net Of Tax	23.2	72.1
[ParentCompanyMember]
StatementOfIncomeAndComprehensiveIncomeAbstract
Net income (loss)	11.6	58.3
Comprehensive Income Net Of Tax	23.2	72.1
[SubsidiariesMember]
StatementOfIncomeAndComprehensiveIncomeAbstract
Net income (loss)	(5.5)	23.0
Comprehensive Income Net Of Tax	(5.4)	22.7
[NonGuarantorSubsidiariesMember]
StatementOfIncomeAndComprehensiveIncomeAbstract
Net income (loss)	54.5	82.4
Comprehensive Income Net Of Tax	40.0	89.6
[ConsolidationEliminationsMember]
StatementOfIncomeAndComprehensiveIncomeAbstract
Net income (loss)	(49.0)	(105.4)
Comprehensive Income Net Of Tax	$ (34.6)	$ (112.3)