Financial Instruments and Derivative Financial Instruments (Offsetting) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset by Counterparty	$ 2.6	$ 1.8
Derivative Asset, Fair Value, Amount Offset Against Collateral	(2.6)	(1.8)
Derivative Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability by Counterparty	47.4	23.7
Derivative Liability, Fair Value, Amount Offset Against Collateral	(2.6)	(1.8)
Derivative Liabilities	44.8	21.9
Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset by Counterparty	0.0	0.0
Derivative Asset, Fair Value, Amount Offset Against Collateral	0.0	0.0
Derivative Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability by Counterparty	5.9	5.9
Derivative Liability, Fair Value, Amount Offset Against Collateral	0.0	0.0
Derivative Liabilities	5.9	5.9
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset by Counterparty	2.6	2.6
Derivative Asset, Fair Value, Amount Offset Against Collateral	(2.6)	(2.6)
Derivative Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability by Counterparty	41.5	41.5
Derivative Liability, Fair Value, Amount Offset Against Collateral	(2.6)	(2.6)
Derivative Liabilities	$ 38.9	$ 38.9