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Derivative Instruments - Balance Sheet Classification (Details) € in Millions, $ in Millions	Sep. 30, 2020 USD ($)	Sep. 30, 2020 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Sep. 30, 2019 USD ($)	Sep. 30, 2019 EUR (€)
Derivatives, Fair Value
Total asset derivatives	$ 30.0		$ 38.0		$ 63.0
Total liability derivatives	100.0		24.0		4.0
Current derivative asset	16.0		8.0		34.0
Current derivative liability	13.0				3.0
Noncurrent derivative asset	14.0		30.0		29.0
Noncurrent derivative liability	87.0		24.0		1.0
Derivatives designated as hedging instruments
Derivatives, Fair Value
Total asset derivatives	27.0		36.0		61.0
Total liability derivatives	94.0		24.0		1.0
Derivatives designated as hedging instruments \| Commodity forward contracts
Derivatives, Fair Value
Notional amount	1.5		2.1		2.1
Total asset derivatives			1.0		1.0
Derivatives designated as hedging instruments \| Interest rate swaps - fair value hedges
Derivatives, Fair Value
Notional amount \| €		€ 725		€ 725		€ 725
Total asset derivatives	16.0		8.0		17.0
Total liability derivatives			2.0
Derivatives designated as hedging instruments \| Cash flow hedges of foreign exchange risk
Derivatives, Fair Value
Notional amount	1,100.0		1,100.0		1,200.0
Total asset derivatives	9.0		25.0		36.0
Total liability derivatives	67.0		21.0
Derivatives designated as hedging instruments \| Interest rate swaps - cash flow hedges
Derivatives, Fair Value
Notional amount	0.0		105.0		180.0
Total liability derivatives			1.0		1.0
Derivatives not designated as hedging instruments \| Foreign exchange derivative contracts
Derivatives, Fair Value
Notional amount	247.0		283.0		169.0
Total asset derivatives	3.0		2.0		2.0
Total liability derivatives	6.0				3.0
Net investment hedges \| Derivatives designated as hedging instruments
Derivatives, Fair Value
Notional amount \| €		€ 311		€ 160		€ 160
Total asset derivatives	2.0		$ 2.0		$ 7.0
Total liability derivatives	$ 27.0