Debt Facilities Debt Facilities - 2025 and 2027 Notes Redemption Rates (Details) - Senior Notes [Member]	9 Months Ended
Sep. 30, 2017
5.375% Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Redemption period, start date	May 15, 2022
5.375% Senior Notes due 2027 [Member] \| Early Equity Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	105.375%
5.375% Senior Notes due 2027 [Member] \| First Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	102.688%
5.375% Senior Notes due 2027 [Member] \| Second Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	101.792%
5.375% Senior Notes due 2027 [Member] \| Third Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	100.896%
5.375% Senior Notes due 2027 [Member] \| Fourth Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	100.00%
2.875% Euro Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Redemption period, start date	Oct. 01, 2020
2.875% Euro Senior Notes due 2025 [Member] \| Early Equity Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	102.875%
2.875% Euro Senior Notes due 2025 [Member] \| First Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	101.438%
2.875% Euro Senior Notes due 2025 [Member] \| Second Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	100.719%
2.875% Euro Senior Notes due 2025 [Member] \| Third Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	100.00%
2.875% Euro Senior Notes due 2025 [Member] \| Fourth Year Redemption Price
Debt Instrument [Line Items]
Redemption price, percentage	0.00%

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- Definition

Start date of debt instrument redemption period, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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