Indebtedness (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended
	Feb. 11, 2014	Mar. 29, 2014	Dec. 31, 2014	Feb. 11, 2014	Dec. 31, 2013	Dec. 31, 2007
Debt
Balance at the beginning of the period		$ 1,675.6	$ 1,675.6
Borrowings			675.7
Repayments			(984.7)
Other			3.1
Balance at the end of the period			1,369.7
Less: short-term debt			181.1		26.9
Less: current maturities of long-term debt			30.8		558.7
Total long-term debt			1,157.8		1,090.0
Loss on early extinguishment of debt			32.5
Redemption premium paid			30.6
Capital lease obligations			13.6
Maturities of long-term debt payable
2015			30.8
2016			30.0
2017			629.7
2018			493.8
2019			0.7
Domestic revolving loan facility
Debt
Borrowings			472.0
Repayments			(339.0)
Balance at the end of the period			133.0
Term loan
Debt
Balance at the beginning of the period		475.0	475.0
Borrowings			100.0
Balance at the end of the period			575.0
Maximum borrowing capacity under financing arrangement			575.0
Percentage of initial principal amount which the entity will repay annually beginning with the second fiscal quarter of 2015			5.00%
6.875% senior notes, due in August 2017
Debt
Balance at the beginning of the period					600.0
Balance at the end of the period			600.0		600.0
Interest rate percentage			6.875%		6.875%
7.625% senior notes
Debt
Balance at the beginning of the period		500.0	500.0
Repayments			(500.0)
Interest rate percentage	7.625%	7.625%		7.625%	7.625%	7.625%
Redemption price	530.6
Loss on early extinguishment of debt		32.5
Redemption premium paid		30.6
Write-off of unamortized deferred financing fees		1.0
Other costs associated with the extinguishment		0.9
Trade receivables financing arrangement
Debt
Borrowings			91.0
Repayments			(81.0)
Balance at the end of the period			10.0
Maximum borrowing capacity under financing arrangement			80.0
Available borrowing capacity			70.0
Other indebtedness
Debt
Balance at the beginning of the period		100.6	100.6
Borrowings			12.7
Repayments			(64.7)
Other			3.1
Balance at the end of the period			51.7
Capital lease obligations			13.6		73.0
Purchase card programs			32.1		25.4
Cash consideration for purchase of corporate headquarters facility		$ 60.8