Borrowings - Debt Instrument Redemption (Details)	12 Months Ended
	Dec. 31, 2019
2024 Dollar Senior Notes [Member] | 2019
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	103.656%
2024 Dollar Senior Notes [Member] | 2020
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	102.438%
2024 Dollar Senior Notes [Member] | 2021
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	101.219%
2024 Dollar Senior Notes [Member] | 2022 and Thereafter
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	100.00%
2024 Euro Senior Notes [Member] | 2019
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	103.188%
2024 Euro Senior Notes [Member] | 2020
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	102.125%
2024 Euro Senior Notes [Member] | 2021
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	101.063%
2024 Euro Senior Notes [Member] | 2022 and Thereafter
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	100.00%
2025 Euro Senior Notes [Member]
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	103.75%
2025 Euro Senior Notes [Member] | 2020 Period One
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	102.813%
2025 Euro Senior Notes [Member] | 2021 Period Two
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	101.875%
2025 Euro Senior Notes [Member] | 2022 Period Three
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	100.938%
2025 Euro Senior Notes [Member] | 2023 and Thereafter Period Four and Thereafter
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price, percentage	100.00%