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Acquisitions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Agua Clara |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Indemnification Asset, Amount |  | $ 98 |  | $ 98
Tunica Windpower LLC |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Indemnification Asset, Amount |  | 22 |  | 22
Windor Solar |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Indemnification Asset, Amount |  | 17 |  | 17
Bellefield |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Indemnification Asset, Amount | $ 402 |  | $ 402 |
Bolero Solar Park |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Indemnification Asset, Amount | 114 |  | 114 |
Other Income [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition of a VIE, Contingent Consideration, Remeasurement Gain | $ 0 | $ 3 | 0 | 3
Windor Solar |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Consideration Transferred, Contingent Consideration |  |  |  | 5
Tunica Windpower LLC |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset Acquisition, Consideration Transferred, Contingent Consideration |  |  |  | $ 7
Bellefield |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments to Acquire Businesses, Gross |  |  | 449 |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | 164 |
Other Payments to Acquire Businesses |  |  | 28 |
Asset Acquisition, Consideration Transferred, Contingent Consideration |  |  | $ 210 |
Bellefield | Weighted Average [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring |  |  | 90.40% |
Windor Solar |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 100.00% |  | 100.00%
Agua Clara |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 100.00% |  | 100.00%
Tunica Windpower LLC |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 100.00% |  | 100.00%
Bellefield |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 100000000.00% |  | 100000000.00% |
Bolero Solar Park |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 100000000.00% |  | 100000000.00% |

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