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Debt and Other Obligations (Indebtedness) (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 22,921,000 |  | $ 21,729,000 |  |  |  |  |  |
Less: current maturities and short-term debt and other current obligations |  | 835,000 |  | 819,000 |  |  |  |  |  |
Non-current portion of long-term debt and other long-term obligations |  | $ 22,086,000 |  | 20,910,000 |  |  |  |  |  |
Max duration of CP |  | 397 |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.875% |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 1.75% |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.00% |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.75% |  |  |  |  |  |  |  |
Maximum Downward Adjustment - Commitment Fee [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.01% |  |  |  |  |  |  |  |
Maximum Upward Adjustment - Spread |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 0.05% |  |  |  |  |  |  |  |
Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 1,754,000 |  | 1,736,000 |  |  |  |  |  |
Unsecured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 21,167,000 |  | 19,993,000 |  |  |  |  |  |
Minimum [Member] | Finance Lease Obligations and Other [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument Maturity Date Range |  | one year |  |  |  |  |  |  |  |
Maximum [Member] | Finance Lease Obligations and Other [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument Maturity Date Range |  | 25 years |  |  |  |  |  |  |  |
Fixed Rate Debt 2009 Securitized Notes A-2 [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 40,000 |  | 47,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 9.00% |  |  |  |  |  |  |  |
2015 Tower Revenue Notes 3.663% due 2045 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 700,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 700,000 |  |  |  |  |  |  |  |
2015 Tower Revenue Notes 3.663% due 2045 [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 698,000 |  | 698,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.70% | [1] |  |  |  |  |  |  | 3.663%
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 700,000
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 700,000
2018 Tower Revenue Notes 4.241% due 2048 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 750,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 750,000 |  |  |  |  |  |  |  |
2018 Tower Revenue Notes 4.241% due 2048 [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 746,000 |  | 745,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.20% | [1] |  |  |  | 4.241% |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 750,000 |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 750,000 |  |  |
Finance Lease Obligations and Other [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 10.00% |  |  |  |  |  |  |  |
3.150% Senior Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 0 |  | 749,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.15% |  |  |  |  | 3.15% |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 750,000 |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 750,000 |  |  |
August 2017 Senior Unsecured 3.200% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 749,000 |  | 748,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.20% | [1] |  |  |  |  | 3.20% |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 750,000 |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 750,000 |  |
Senior Unsecured 2016 Notes 4.450% [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 898,000 |  | 896,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 4.50% |  |  |  |  |  |  |  |
Senior Unsecured 2016 Notes 3.7% [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 748,000 |  | 747,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 3.70% |  |  |  |  |  |  |  |
4.000% Senior Unsecured Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 498,000 |  | 497,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.00% | [1] |  |  |  |  | 4.00% |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 500,000 |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 500,000 |  |
August 2017 Senior Unsecured 3.650% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 997,000 |  | 996,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.70% | [1] |  |  |  |  | 3.65% |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 1,000,000 |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 1,000,000 |  |
3.800% Senior Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 995,000 |  | 993,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.80% | [1] |  |  |  | 3.80% |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 1,000,000 |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 1,000,000 |  |  |
February 2019 Senior Unsecured 4.300% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 595,000 |  | 594,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.30% | [1] |  |  | 4.30% |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 600,000 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 600,000 |  |  |  |
August 2019 Senior Unsecured 3.100% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 546,000 |  | 545,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.10% | [1] |  |  | 3.10% |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 550,000 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 550,000 |  |  |  |
4.750% Senior Unsecured Notes [Member] [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 344,000 |  | 344,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.80% | [1] |  |  |  |  | 4.75% |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 350,000 |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 350,000 |  |
February 2019 Senior Unsecured 5.200% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 396,000 |  | 396,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.20% | [1] |  |  | 5.20% |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 400,000 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 400,000 |  |  |  |
August 2019 Senior Unsecured 4.000% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 346,000 |  | 346,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.00% | [1] |  |  | 4.00% |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 350,000 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 350,000 |  |  |  |
Tower Revenue Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Increase (Decrease) |  | 5.00% |  |  |  |  |  |  |  |
Secured Debt [Member] | Finance Lease Obligations and Other [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 270,000 |  | 246,000 |  |  |  |  |  |
June 2020 Senior Unsecured 1.350% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 498,000 |  | 497,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 1.40% | [1] |  | 1.35% |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000 |  |  |  |  |
June 2020 Senior Unsecured 2.250% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 1,091,000 |  | 1,090,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.30% | [1] |  | 2.25% |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 1,100,000 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 1,100,000 |  |  |  |  |
April 2020 Senior Unsecured 3.300% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 741,000 |  | 739,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.30% | [1] |  | 3.30% |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 750,000 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 750,000 |  |  |  |  |
April 2020 Senior Unsecured 4.150% Notes [Member] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 490,000 |  | 490,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.20% | [1] |  | 4.15% |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000 |  |  |  |  |
June 2020 Senior Unsecured 3.250% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 890,000 |  | 890,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.30% | [1] |  | 3.25% |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 900,000 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 900,000 |  |  |  |  |
February 2021 Senior Unsecured 2.100% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 990,000 |  | 989,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 2.10% |  |  |  |  |  |  |  |
June 2021 Senior Unsecured 2.500% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 743,000 |  | 742,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 2.50% |  |  |  |  |  |  |  |
February 2021 Senior Unsecured 2.900% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 1,234,000 |  | 1,233,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 2.90% |  |  |  |  |  |  |  |
February 2021 Senior Unsecured 1.050% Notes [Domain] | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 994,000 |  | 992,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 1.10% |  |  |  |  |  |  |  |
2.9000% Senior Unsecured Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 744,000 |  | 742,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 2.90% |  |  |  |  |  |  |  |
January 2023 Senior Unsecured 5.000% Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 991,000 |  | 0 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 5.00% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 1,000,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 1,000,000 |  |  |  |  |  |  |  |
April 2023 4.800% Senior Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 594,000 |  | 0 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 4.80% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 600,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 600,000 |  |  |  |  |  |  |  |
December 2023 Senior Unsecured 5.600% Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 740,000 |  | 0 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 5.60% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 750,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 750,000 |  |  |  |  |  |  |  |
April 2023 Senior Unsecured 5.100% Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 743,000 |  | 0 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 5.10% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 750,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 750,000 |  |  |  |  |  |  |  |
December 2023 Senior Unsecured 5.800% Notes | Bonds [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 740,000 |  | 0 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1] | 5.80% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 750,000 |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 750,000 |  |  |  |  |  |  |  |
2016 Term Loan A [Member] | Bank Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 1,162,000 |  | 1,192,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1],[2] | 6.50% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 2,000,000 |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 2,000,000 |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 670,000 | [3] | 1,305,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | [1],[2] | 6.50% |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 6,300,000 |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage |  | 0.08% |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage |  | 0.30% |  |  |  |  |  |  |  |
Commercial Paper [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt and other obligations |  | $ 0 |  | $ 1,241,000 |  |  |  |  |  |
[1] | Represents the weighted-average stated interest rate, as applicable.
[2] | Both the 2016 Revolver and senior unsecured term loan A facility ("2016 Term Loan A" and, collectively, "2016 Credit Facility") bear interest, at the Company's option, at either (1) Term SOFR plus (i) a credit spread adjustment of 0.10% per annum and (ii) a credit spread ranging from 0.875% to 1.750% per annum or (2) an alternate base rate plus a credit spread ranging from 0.000% to 0.750% per annum, in each case, with the applicable credit spread based on the Company's senior unsecured debt rating. The Company pays a commitment fee ranging from 0.080% to 0.300%, based on the Company's senior unsecured debt rating, per annum on the undrawn available amount under the 2016 Revolver. See further discussion below regarding potential adjustments to such percentages.
[3] | As of December 31, 2023, the undrawn availability under the senior unsecured revolving credit facility ("2016 Revolver") was $6.3 billion.

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