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Property, Plant and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 2,996 | $ 4,483 |
Accumulated depreciation | (1,308) | (1,936) |
Net property, plant, and equipment | 1,688 | 2,547 |
Depreciation | 384 | 295 | $ 271
Facilities and equipment |  |  |
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 1,742 | 3,365 |
Facilities and equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Depreciable lives (in years) | 1 year |  |
Facilities and equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Depreciable lives (in years) | 40 years |  |
Land and improvements |  |  |
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 271 | 329 |
Nuclear fuel |  |  |
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 222 | 239 |
Depreciable lives (in years) | 5 years |  |
Hardware and office equipment and furnishings |  |  |
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 637 | 453 |
Hardware and office equipment and furnishings | Minimum |  |  |
Property, Plant and Equipment |  |  |
Depreciable lives (in years) | 2 years |  |
Hardware and office equipment and furnishings | Maximum |  |  |
Property, Plant and Equipment |  |  |
Depreciable lives (in years) | 10 years |  |
Construction in progress |  |  |
Property, Plant and Equipment |  |  |
Total property, plant, and equipment | $ 124 | $ 97 |

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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