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Lease and Transponder Service Agreements (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Lessee, Lease, Description [Line Items] |  |  |  |  |
Lessee Leasing Arrangement, Term of Contract |  |  | 12 months |  |
Operating Lease, Liability | $ 205 |  | $ 205 |  | $ 220
Lease, Cost [Abstract] |  |  |  |  |
Finance Lease, Right-of-Use Asset, Amortization | 4 | $ 5 | 14 | $ 15 |
Finance Lease, Interest Expense | 2 | 2 | 6 | 6 |
Finance Lease, Total Cost | 6 | 7 | 20 | 21 |
Operating leases expense net | 10 | 9 | 30 | 29 |
Total Lease Cost | $ 16 | $ 16 | $ 50 | 50 |
Weighted average lease term and discount rate [Abstract] |  |  |  |  |
Finance Lease, Weighted Average Remaining Lease Term | 7 years 10 months 24 days |  | 7 years 10 months 24 days |  |
Operating Lease, Weighted Average Remaining Lease Term | 10 years 8 months 12 days |  | 10 years 8 months 12 days |  |
Finance Lease, Weighted Average Discount Rate, Percent | 5.10% |  | 5.10% |  |
Operating Lease, Weighted Average Discount Rate, Percent | 6.00% |  | 6.00% |  |
Supplemental balance sheet information [Abstract] |  |  |  |  |
Operating Lease, Right-of-Use Asset | $ 206 |  | $ 206 |  | 221
Operating Lease, Liability, Current | 24 |  | 24 |  | 25
Operating Lease, Liability, Noncurrent | 181 |  | 181 |  | 195
Finance Lease, Right of Use Asset, Gross | 281 |  | 281 |  | 278
Finance Lease, Right-of-Use Asset, Accumulated Amortization | (149) |  | (149) |  | (141)
Finance Lease, Right-of-Use Asset | 132 |  | 132 |  | 137
Finance Lease, Liability, Current | 18 |  | 18 |  | 18
Finance Lease, Liability, Noncurrent | 145 |  | 145 |  | 150
Finance Lease, Liability | 163 |  | 163 |  | $ 168
Supplemental Cash Flow Information [Abstract] |  |  |  |  |
Operating Lease, Payments |  |  | 29 | 33 |
Finance Lease, Interest Payment on Liability |  |  | 6 | 6 |
Finance Lease, Principal Payments |  |  | 13 | 14 |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability |  |  | 6 | 22 |
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability |  |  | 11 | $ 0 |
Finance Lease, Liability, Payment, Due [Abstract] |  |  |  |  |
Remainder of 2021 | 6 |  | 6 |  |
2022 | 28 |  | 28 |  |
2023 | 27 |  | 27 |  |
2024 | 26 |  | 26 |  |
2025 | 24 |  | 24 |  |
Thereafter | 90 |  | 90 |  |
Total lease payments | 201 |  | 201 |  |
Imputed interest on finance lease | (38) |  | (38) |  |
Operating leases |  |  |  |  |
Remainder of 2021 | 9 |  | 9 |  |
2022 | 35 |  | 35 |  |
2023 | 28 |  | 28 |  |
2024 | 25 |  | 25 |  |
2025 | 21 |  | 21 |  |
Thereafter | 167 |  | 167 |  |
Total | 285 |  | 285 |  |
Imputed interest of operating leases | (80) |  | (80) |  |
Total Future payments, Leases [Abstract] |  |  |  |  |
Remainder of 2021 | 15 |  | 15 |  |
2022 | 63 |  | 63 |  |
2023 | 55 |  | 55 |  |
2024 | 51 |  | 51 |  |
2025 | 45 |  | 45 |  |
Thereafter | 257 |  | 257 |  |
Total Lease Payments Due | 486 |  | 486 |  |
Imputed interest on lease liabilities | (118) |  | (118) |  |
Lease Liability, Total | $ 368 |  | $ 368 |  |
Minimum [Member] |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Lessee Leasing Arrangement, Term of Contract |  |  | 1 year |  |
Maximum [Member] |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Lessee Leasing Arrangement, Term of Contract |  |  | 13 years |  |

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