Derivative Instruments Interest Rate Swap (Details 2) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 1,892.4	$ 2,239.1
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	793.8	735.1
Foreign Exchange Contract | Other current assets | Not Designated as Hedging Instrument
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative assets	8.0	1.1
Foreign Exchange Contract | Accrued expenses and other | Not Designated as Hedging Instrument
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative liabilities	2.4	3.2
Interest rate swap | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount			$ 675.0
Euro | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	1,892.4	1,701.4
British pound sterling | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	0.0	215.3
Swiss francs | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	0.0	131.4
Canadian dollar | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	0.0	92.2
Japan, Yen | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	0.0	98.8
Cash Flow Hedge | Foreign Exchange Contract | Other current assets
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative assets	33.8	65.8
Cash Flow Hedge | Foreign Exchange Contract | Accrued expenses and other
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative liabilities	2.0	6.9
Cash Flow Hedge | Foreign Exchange Contract | Other long-term liabilities
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative liabilities	1.7	0.0
Net Investment Hedge | Foreign Exchange Contract | Other current assets
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative assets	2.0	0.0
Fair Value Hedge | Interest rate swap | Accrued expenses and other
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative liabilities	2.3	0.0
Fair Value Hedge | Interest rate swap | Other long-term liabilities
Summary of the effect of derivatives designated as hedging instruments on the consolidated statements of income
Derivative liabilities	$ 0.0	$ 14.5