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Debt - Senior Unsecured Notes (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Jul. 12, 2021 | May 19, 2021 | Feb. 26, 2021 | Jan. 28, 2021 | Jul. 09, 2020 | Jun. 24, 2020 | Jun. 23, 2020
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Principal balance on debt | $ 5,578,596,000 |  | $ 5,578,596,000 |  |  |  |  |  |  |  |
Loss on extinguishment of debt | 667,000 | $ 17,921,000 | 225,824,000 | $ 42,912,000 |  |  |  |  |  |  |
Senior Unsecured Note |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Principal balance on debt | $ 4,200,000,000 |  | 4,200,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Note | Unsecured Note 3.400 Percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 251,806,000 |  |  |  |  |
Coupon Rate |  |  |  |  |  | 3.40% |  |  |  |  |
Senior Unsecured Note | Unsecured Note 4.000 Percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 298,194,000 |  |  |  |  |
Coupon Rate |  |  |  |  |  | 4.00% |  |  |  |  |
Senior Unsecured Note | Unsecured Note 4.250 Percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  |  | $ 188,000,000 | $ 112,000,000 |  | $ 250,000,000 |
Coupon Rate |  |  |  |  |  |  | 4.25% | 4.25% |  | 4.25% |
Loss on extinguishment of debt |  |  |  | 26,000,000 |  |  |  |  |  |  |
Senior Unsecured Note | Unsecured Note 4.200 Percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  |  | $ 149,000,000 | $ 201,000,000 |  |  |
Coupon Rate |  |  |  |  |  |  | 4.20% | 4.20% |  |  |
Senior Unsecured Note | Unsecured Note 3.880 Percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  |  | $ 331,000,000 | $ 469,000,000 |  |  |
Coupon Rate |  |  |  |  |  |  | 3.88% | 3.88% |  |  |
Senior Unsecured Note | Senior Notes Due 2025 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | 61,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Note | Senior Notes Due 2023 and 2024 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 164,000,000 |  |  |  |  |  |  |  |
Senior Unsecured Note | 2031 Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  |  |  |  |  |  |  | $ 600,000,000
Coupon Rate |  |  |  |  |  |  |  |  |  |  | 2.88%
Senior Unsecured Note | Unsecured note 3.150 percent |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  | $ 450,000,000 |  |  |  | $ 300,000,000 |  |
Coupon Rate |  |  |  |  | 1.35% |  |  |  | 3.15% |  |
Loss on extinguishment of debt |  | $ 18,000,000 |  | $ 18,000,000 |  |  |  |  |  |  |

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