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Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | $ 2,216 | $ 1,783
Accumulated Amortization |  | (434) | (385)
Net Balance |  | 1,782 | 1,398
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 59 | 52
Indefinite- lived intangible assets, Amortization |  | 0 | 0
Intangible Assets, Gross |  | 2,275 | 1,835
Intangible Assets, Net |  | 1,841 | 1,450
Land Use Rights [Member] |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 42 | 28
Indefinite- lived intangible assets, Amortization |  | 0 | 0
Water rights |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 0 | 3
Indefinite- lived intangible assets, Amortization |  | 0 | 0
Transmission Rights [Member] |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 16 | 19
Indefinite- lived intangible assets, Amortization |  | 0 | 0
Other |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 1 | 2
Indefinite- lived intangible assets, Amortization |  | 0 | 0
Computer Software, Intangible Asset [Member] |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 582 | 457
Accumulated Amortization |  | (307) | (279)
Net Balance |  | 275 | 178
Emission allowances [Member] |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 37 | 18
Accumulated Amortization |  | 0 | 0
Net Balance |  | 37 | 18
Project Development Rights [Member] |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 991 | 819
Accumulated Amortization |  | (17) | (8)
Net Balance |  | 974 | 811
Contracts |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 342 | 183
Accumulated Amortization |  | (40) | (48)
Net Balance |  | 302 | 135
Other |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 57 | 111
Accumulated Amortization |  | (20) | (17)
Net Balance | [1] | 37 | 94
Compensation from Concession Agreement |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Gross Balance |  | 207 | 195
Accumulated Amortization |  | (50) | (33)
Net Balance |  | $ 157 | $ 162
[1] | Acquired or purchased emissions allowances are finite-lived intangible assets that are expensed when utilized and included in net income for the year. (3)Includes management rights, renewable energy credits and incentives, and other individually insignificant intangible assets.

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