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Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 01, 2023 | Jan. 01, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Identifiable intangibles |  |  |  |  |  |  |  |  |
Gross Carrying Amount |  |  |  |  |  |  | $ 578 | $ 50 |
Accumulated Amortization |  |  |  |  |  |  | (40) | (35) |
Net |  |  |  |  |  |  | 538 | 15 |
U.K. long-lived and intangible asset impairment |  |  | $ 87 |  |  | $ 236 | 0 | 239 | $ 236
Proceeds from sale of energy credits |  |  |  |  |  |  |  |  | 46
Realized net (loss) gains |  |  |  |  |  |  | 39 | 6 | 29
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  |  | 15 |  |  |  |  |  |
U.K. goodwill impairment |  |  |  |  | $ 26 | $ 259 | 0 | 0 | 285
Ammonia |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
U.K. goodwill impairment |  |  |  |  |  |  |  |  | 9
AN |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
U.K. goodwill impairment |  |  |  |  |  |  |  |  | 241
Other Products [Member] |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
U.K. goodwill impairment |  |  |  |  |  |  |  |  | 35
Waggaman Ammonia Production Facility |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Intangible assets acquired | $ 526 |  |  |  |  |  |  |  |
Personal property tax agreement |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  |  | 9 | $ 8 |  |  |  |  |
United Kingdom | Natural gas derivatives |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Realized net (loss) gains |  |  |  |  |  |  |  |  | 27
Customer relationships |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Gross Carrying Amount |  |  |  |  |  |  | 505 | 50 |
Accumulated Amortization |  |  |  |  |  |  | (40) | (35) |
Net |  |  |  |  |  |  | $ 465 | 15 |
Finite-lived intangible asset, useful life |  |  |  |  |  |  | 20 years |  |
Amortization expense |  |  |  |  |  |  | $ 5 | 3 | 8
U.K. long-lived and intangible asset impairment |  |  | $ 6 |  |  |  |  |  | $ 50
Customer relationships | Waggaman Ammonia Production Facility |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Intangible assets acquired |  | $ 455 |  |  |  |  |  |  |
Personal property tax agreement |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Gross Carrying Amount |  |  |  |  |  |  | 71 | 0 |
Accumulated Amortization |  |  |  |  |  |  | 0 | 0 |
Net |  |  |  |  |  |  | 71 | 0 |
Carbon Credit |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Gross Carrying Amount |  |  |  |  |  |  | 2 | 0 |
Accumulated Amortization |  |  |  |  |  |  | 0 | 0 |
Net |  |  |  |  |  |  | $ 2 | $ 0 |
Property Tax Agreement |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  |  |  | 12 years |  |
Property Tax Agreement | Waggaman Ammonia Production Facility |  |  |  |  |  |  |  |  |
Identifiable intangibles |  |  |  |  |  |  |  |  |
Intangible assets acquired |  | $ 71 |  |  |  |  |  |  |

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