Equity Method Investments (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 04, 2013
Schedule of Equity Method Investments [Line Items]
Number of equity method investments	6		6
Investments in subsidiaries	$ 0.0		$ 0.0		$ 0.0
Other liabilities, noncurrent	1,275.1		1,275.1		1,366.0
Other liabilities, current	1,925.0		$ 1,925.0		1,841.9
Equity method investments summarized financial data basis			100.00%
Loss from equity method investments	24.9	$ 25.0	$ 55.8	$ 49.7
Agila Specialties | Other assets
Schedule of Equity Method Investments [Line Items]
Investments in subsidiaries	$ 86.0		$ 86.0		96.2
Clean energy investments
Schedule of Equity Method Investments [Line Items]
Number of equity method investments	5		5
Other liabilities	$ 391.2		$ 391.2		419.3
Other liabilities, noncurrent	327.7		327.7		357.0
Other liabilities, current	63.5		63.5		62.3
Clean energy investments | Other assets
Schedule of Equity Method Investments [Line Items]
Investments in subsidiaries	$ 352.7		$ 352.7		$ 379.3
Sagent Agila | Agila Specialties | Equity method investments
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage						50.00%