Subsequent Event (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Subsequent Event [Line Items]
Revenues by Geographic Area(a)	$ 765,800,000	$ 759,200,000	$ 760,300,000	$ 776,100,000	$ 881,200,000	$ 872,500,000	$ 859,000,000	$ 949,600,000		$ 3,061,400,000	$ 3,562,300,000	$ 3,778,600,000
Ireland
Subsequent Event [Line Items]
Revenues by Geographic Area(a)										$ 15,000,000
Forecast | Minimum | Ireland
Subsequent Event [Line Items]
Loss on sale of business									$ 20,000,000
Forecast | Maximum | Ireland
Subsequent Event [Line Items]
Loss on sale of business									$ 25,000,000