Equity Method Investments (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 04, 2013
Schedule of Equity Method Investments [Line Items]
Number of equity method investments	5
Investments in subsidiaries	$ 0.0	$ 0.0
Other liabilities, noncurrent	1,366.0	1,336.7
Other current, liabilities	1,841.9	1,434.1
Loss from equity method investments	105.1	91.4	$ 34.6
Agila Specialties | Equity method investments
Schedule of Equity Method Investments [Line Items]
Investments in subsidiaries	96.2	109.9
Clean energy investments
Schedule of Equity Method Investments [Line Items]
Other liabilities	419.3	472.7
Other liabilities, noncurrent	357.0	412.9
Other current, liabilities	62.3	59.8
Clean energy investments | Other assets
Schedule of Equity Method Investments [Line Items]
Investments in subsidiaries	$ 379.3	$ 437.5
Sagent Agila | Agila Specialties | Equity method investments
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				50.00%