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Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands |  |  |  |  |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 18, 2019 | Jun. 30, 2019 | Jun. 18, 2019 | Mar. 18, 2019 | Feb. 14, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 07, 2019 | Feb. 01, 2019 | Dec. 31, 2018
Debt |  |  |  |  |  |  |  |  |  |  |  |
Capital leases |  | $ 5,000 |  |  |  | $ 5,000 |  | $ 5,000 |  |  |  | $ 5,000
Total debt |  | 7,855,000 |  |  |  | 7,855,000 |  | 7,855,000 |  |  |  | 6,895,000
Less: total current maturities |  | 3,000 |  |  |  | 3,000 |  | 3,000 |  |  |  | 3,000
Less: total deferred financing costs for Notes |  | 9,000 |  |  |  | 9,000 |  | 9,000 |  |  |  | 7,000
Total long-term debt |  | 7,843,000 |  |  |  | 7,843,000 |  | 7,843,000 |  |  |  | 6,885,000
Loss on extinguishment of debt |  |  |  |  |  | 0 | $ 0 | 1,000 | $ 0 |  |  |
Proceeds from sale of capped call security |  |  |  |  |  |  |  | 3,000 | $ 0 |  |  |
Senior Secured Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  | 1,750,000 |  |  |  | 1,750,000 |  | 1,750,000 |  |  |  |
Carrying value |  | $ 0 |  |  |  | $ 0 |  | $ 0 |  |  |  | 439,000
Credit facility, unused capacity, commitment fee percentage |  | 0.25% |  |  |  |  |  |  |  |  |  |
Senior Notes | 1.75% Senior Notes Due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 1.75% |  |  |  | 1.75% |  | 1.75% |  |  |  |
Principal amount |  | $ 1,000 |  |  |  | $ 1,000 |  | $ 1,000 |  |  |  |
Carrying value |  | $ 1,000 |  |  |  | $ 1,000 |  | 1,000 |  |  |  | 0
Loss on extinguishment of debt |  |  |  |  |  |  |  | $ 1,000 |  |  |  |
Senior Notes | 3.875% Senior Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 3.875% |  |  |  | 3.875% |  | 3.875% |  |  |  |
Principal amount |  | $ 1,000,000 |  |  |  | $ 1,000,000 |  | $ 1,000,000 |  |  |  |
Carrying value |  | $ 994,000 |  |  |  | $ 994,000 |  | $ 994,000 |  |  |  | 994,000
Senior Notes | 4.625% Senior Notes Due 2023 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 4.625% |  |  |  | 4.625% |  | 4.625% |  |  |  |
Principal amount |  | $ 500,000 |  |  |  | $ 500,000 |  | $ 500,000 |  |  |  |
Carrying value |  | $ 497,000 |  |  |  | $ 497,000 |  | $ 497,000 |  |  |  | 497,000
Senior Notes | 1.75% Senior Notes Due 2023 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 1.75% |  |  |  | 1.75% |  | 1.75% |  |  |  |
Principal amount |  | $ 193,000 |  |  |  | $ 193,000 |  | $ 193,000 |  |  |  |
Carrying value |  | $ 160,000 |  |  |  | $ 160,000 |  | $ 160,000 |  |  |  | 0
Senior Notes | 6.00% Senior Note Due 2024 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 6.00% |  |  |  | 6.00% |  | 6.00% |  |  |  |
Principal amount |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |
Carrying value |  | $ 1,490,000 |  |  |  | $ 1,490,000 |  | $ 1,490,000 |  |  |  | 1,490,000
Debt instrument redemption price (as a percent of aggregate principal) |  |  | 103.00% |  |  |  |  |  |  |  |  |
Senior Notes | 5.375% Senior Notes Due 2025 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 5.375% |  |  |  | 5.375% |  | 5.375% |  |  |  |
Principal amount |  | $ 1,000,000 |  |  |  | $ 1,000,000 |  | $ 1,000,000 |  |  |  |
Carrying value |  | $ 993,000 |  |  |  | $ 993,000 |  | $ 993,000 |  |  |  | 992,000
Senior Notes | 5.375% Senior Notes Due 2026 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 5.375% |  |  |  | 5.375% |  | 5.375% |  |  |  |
Principal amount |  | $ 1,000,000 |  |  |  | $ 1,000,000 |  | $ 1,000,000 |  |  |  |
Carrying value |  | $ 991,000 |  |  |  | $ 991,000 |  | $ 991,000 |  |  |  | 991,000
Senior Notes | 5.00% Senior Notes Due 2027 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 5.00% |  |  |  | 5.00% |  | 5.00% |  |  |  |
Principal amount |  | $ 1,500,000 |  |  |  | $ 1,500,000 |  | $ 1,500,000 |  |  |  |
Carrying value |  | $ 1,488,000 |  |  |  | $ 1,488,000 |  | $ 1,488,000 |  |  |  | 1,487,000
Senior Notes | 5.500% Senior Notes Due 2029 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 5.50% |  |  |  | 5.50% |  | 5.50% |  |  |  |
Principal amount |  | $ 1,250,000 |  |  |  | $ 1,250,000 |  | $ 1,250,000 |  | $ 1,250,000 |  |
Carrying value |  | $ 1,236,000 |  |  |  | $ 1,236,000 |  | $ 1,236,000 |  |  |  | $ 0
Net original issuance discount and deferred financing costs |  |  |  |  |  |  |  |  |  | $ 16,000 |  |
Pandora | Senior Notes | 1.75% Senior Notes Due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 1.75% |  |  | 1.75% | 1.75% |  | 1.75% |  |  |  |
Short-term debt |  |  |  |  |  |  |  |  |  |  | $ 152,000 |
Debt instrument redemption price (as a percent of aggregate principal) |  |  |  |  | 100.00% |  |  |  |  |  |  |
Pandora | Senior Notes | 1.75% Senior Notes Due 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  | $ 151,000 |  |  |  |  |  |  |  |
Pandora |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding |  | $ 1,000 |  |  |  | $ 1,000 |  | $ 1,000 |  |  |  |
Subsequent Event | Senior Notes | 6.00% Senior Note Due 2024 |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (as a percent of aggregate principal) | 103.00% |  |  |  |  |  |  |  |  |  |  |

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