Long-term Debt - Narrative (Details) $ in Thousands |
3 Months Ended | |||
---|---|---|---|---|
Mar. 31, 2019
USD ($)
|
Mar. 31, 2019
EUR (€)
|
Mar. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
|
Debt Disclosure [Abstract] | ||||
Aggregate outstanding principal | $ 10,305,023 | $ 10,360,058 | ||
Debt issuance costs | 87,000 | |||
Debt Instrument [Line Items] | ||||
Principal amount at par | 10,392,000 | |||
Senior Notes | ||||
Debt Instrument [Line Items] | ||||
Principal amount at par | € | € 2,400,000,000 | |||
Redemption prices, percent of outstanding principal | 101.00% | |||
Senior Notes | 3.625% Senior Notes | ||||
Debt Instrument [Line Items] | ||||
Principal amount at par | 1,300,000,000 | 1,458,000 | ||
Proceeds from convertible debt | $ 1,421,000 | |||
Senior Notes | 4.625% Senior Notes | ||||
Debt Instrument [Line Items] | ||||
Principal amount at par | € 1,100,000,000 | $ 1,234,000 | ||
Proceeds from convertible debt | $ 1,262,000 |