Intangible Assets and Goodwill - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 144.1	$ 480.4
Accumulated amortization	(62.2)	(158.7)
Intangible assets, net	81.9	321.7
Amortization expense	27.5	26.0	23.6
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future estimated amortization expense, 2013	14.1
Future estimated amortization expense, 2014	12.7
Future estimated amortization expense, 2015	11.2
Future estimated amortization expense, 2016	9.2
Future estimated amortization expense, 2017	8.2
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	37.7	347.1
Accumulated amortization	(6.0)	(57.5)
Intangible assets, net	31.7	289.6
Software
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	58.4	57.9
Accumulated amortization	(52.0)	(51.1)
Intangible assets, net	6.4	6.8
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	21.2	61.5
Accumulated amortization	(1.0)	(45.5)
Intangible assets, net	20.2	16.0
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	26.8	13.9
Accumulated amortization	(3.2)	(4.6)
Intangible assets, net	$ 23.6	$ 9.3