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Leases and Capacity Purchase Agreements - Future Lease Payment under Terms of Capacity Purchase Agreement (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Lessee, Lease, Description [Line Items] |  |
2024 | $ 178 |
2025 | 178 |
2026 | 178 |
2027 | 472 |
2028 | 147 |
After 2028 | 2,090 |
Total | 3,243 |
Imputed interest | (921) |
Less: current maturities of lease obligations | (57) | $ (23)
Other financial liabilities | 2,265 | $ 844
Capacity Purchase Agreements |  |
Lessee, Lease, Description [Line Items] |  |
2024 | 2,400 |
2025 | 2,100 |
2026 | 2,100 |
2027 | 1,600 |
2028 | 1,300 |
After 2028 | 4,100 |
Total | $ 13,600 |

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