Derivative Instruments Fair Value of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative assets	$ 26.7	$ 2.5
Derivative liability	32.4	9.9
Designated as hedge
Derivative [Line Items]
Derivative assets	25.7	2.5
Derivative liability	31.8	9.7
Other current assets | Non-designated derivatives
Derivative [Line Items]
Derivative assets	1.0	0.0
Other accrued liabilities | Non-designated derivatives
Derivative [Line Items]
Derivative liability	0.6	0.2
Cash Flow Hedging | Other current assets | Designated as hedge | Foreign exchange contracts
Derivative [Line Items]
Derivative assets	0.0	2.2
Cash Flow Hedging | Other accrued liabilities | Designated as hedge | Foreign exchange contracts
Derivative [Line Items]
Derivative liability	27.6	6.6
Cash Flow Hedging | Other long-term liabilities | Designated as hedge | Foreign exchange contracts
Derivative [Line Items]
Derivative liability	4.2	0.0
Cash Flow Hedging | Other long-term assets | Designated as hedge | Foreign exchange contracts
Derivative [Line Items]
Derivative assets	0.1	0.3
Fair value hedges | Other long-term liabilities | Designated as hedge | Interest rate swap contracts
Derivative [Line Items]
Derivative liability	0.0	3.1
Fair value hedges | Other long-term assets | Designated as hedge | Interest rate swap contracts
Derivative [Line Items]
Derivative assets	$ 25.6	$ 0.0