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Debt - Long-Term Debt (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
May 17, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Long-term debt |  |  |
Principal amount |  | $ 3,001 | $ 3,538
Unamortized discount and debt issuance costs |  | 67 | 109
Total long term debt |  | 2,934 | 3,429
Current portion of long-term debt |  | 6 | 5
Long-term debt, net |  | $ 2,928 | 3,424
Redemption price, percentage |  | 100.00% |
Unamortized debt issuance costs |  | $ 57 |
Long-term debt maturities |  |  |
Scheduled principal payments 2022 |  | 6 |
Scheduled principal payments 2023 |  | 6 |
Scheduled principal payments 2024 |  | 5 |
Scheduled principal payments 2025 |  | 5 |
Scheduled principal payments 2026 |  | $ 5 |
6.625% Senior Notes | TDS |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 6.625% |
Principal amount |  | $ 0 | 116
Long-term debt |  | 0 | 113
Unamortized discount and debt issuance costs |  | $ 0 | 3
6.875% Senior Notes | TDS |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 6.875% |
Principal amount |  | $ 0 | 225
Long-term debt |  | 0 | 218
Unamortized discount and debt issuance costs |  | $ 0 | 7
7.0% Senior Notes | TDS |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 7.00% |
Principal amount |  | $ 0 | 300
Long-term debt |  | 0 | 291
Unamortized discount and debt issuance costs |  | $ 0 | 9
5.875% Senior Notes | TDS |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 5.875% |
Principal amount |  | $ 0 | 195
Long-term debt |  | 0 | 188
Unamortized discount and debt issuance costs |  | $ 0 | 7
6.7% Senior Notes | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 6.70% |
Principal amount |  | $ 544 | 544
Long-term debt |  | 532 | 531
Unamortized discount and debt issuance costs |  | $ 12 | 13
Redemption price, percentage |  | 100.00% |
6.7% Senior Notes | Treasury Rate | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 0.30% |
6.95% Senior Notes | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 6.95% |
Principal amount |  | $ 0 | 342
Long-term debt |  | 0 | 331
Unamortized discount and debt issuance costs |  | $ 0 | 11
7.25% Senior Notes due 2063 | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 7.25% |
Principal amount |  | $ 0 | 275
Long-term debt |  | 0 | 265
Unamortized discount and debt issuance costs |  | $ 0 | 10
7.25% Senior Notes due 2064 | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 7.25% |
Principal amount |  | $ 0 | 300
Long-term debt |  | 0 | 290
Unamortized discount and debt issuance costs |  | $ 0 | 10
6.25% Senior Notes | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 6.25% |
Principal amount |  | $ 500 | 500
Long-term debt |  | 483 | 483
Unamortized discount and debt issuance costs |  | $ 17 | 17
5.5% Senior Notes | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt |  | 5.50% |
Principal amount |  | $ 500 | 500
Long-term debt |  | 483 | 483
Unamortized discount and debt issuance costs |  | $ 17 | 17
5.5% Senior Notes | UScellular |  |  |
Long-term debt |  |  |
Interest rate on debt | 5.50% | 5.50% |
Principal amount | $ 500 | $ 500 | 0
Debt issuance costs | 16 |  |
Long-term debt | $ 484 | 484 | 0
Unamortized discount and debt issuance costs |  | $ 16 | 0
Redemption price, percentage | 100.00% |  |
Callable Notes |  |  |
Long-term debt |  |  |
Redemption price, percentage |  | 100.00% |
UScellular Term Loan Agreement | UScellular |  |  |
Long-term debt |  |  |
Principal amount |  | $ 299 | 83
Long-term debt |  | 296 | 80
Unamortized discount and debt issuance costs |  | 3 | 3
Finance lease obligations |  |  |
Long-term debt |  |  |
Principal amount |  | 7 | 7
Unamortized discount and debt issuance costs |  | 0 | 0
Finance lease obligations |  | 7 | 7
Other long-term notes |  |  |
Long-term debt |  |  |
Principal amount |  | 1 | 1
Long-term debt |  | 1 | 1
Unamortized discount and debt issuance costs |  | 0 | 0
TDS Term Loan Agreement |  |  |
Long-term debt |  |  |
Principal amount |  | 200 | 125
Long-term debt |  | 198 | 123
Unamortized discount and debt issuance costs |  | 2 | 2
Receivables securitization agreement | UScellular |  |  |
Long-term debt |  |  |
Principal amount |  | 450 | 25
Long-term debt |  | 450 | 25
Unamortized discount and debt issuance costs |  | $ 0 | $ 0

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