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Revenue Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 3,060 | $ 3,627 | $ 3,078 | $ 2,852 | $ 2,770 | $ 3,036 | $ 2,700 | $ 2,635 | $ 12,617 | $ 11,141 | $ 9,660
Loan receivable, net of allowance of $26 | $ 1,051 |  |  |  | $ 0 |  |  |  | 1,051 | 0 |
Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 3,507 | 2,831 | 2,626
Other non-606 revenue |  |  |  |  |  |  |  |  | 31 | 37 | 35
Revenues |  |  |  |  |  |  |  |  | 3,538 | 2,868 | 2,661
Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 8,638 | 7,586 | 6,418
Other non-606 revenue |  |  |  |  |  |  |  |  | 441 | 687 | 581
Revenues |  |  |  |  |  |  |  |  | 9,079 | 8,273 | 6,999
Corporate Other And Other Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | (100) | (74) | (207)
Corporate Other And Other Eliminations [Member] | Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other non-606 revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Corporate Other And Other Eliminations [Member] | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | (100) | (74) | (207)
Other non-606 revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | (100) | (74) | (207)
Renewables |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,893 | 1,562 | 1,295
Renewables | Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other non-606 revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Renewables | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 1,791 | 1,438 | 1,224
Other non-606 revenue |  |  |  |  |  |  |  |  | 102 | 124 | 71
Revenues |  |  |  |  |  |  |  |  | 1,893 | 1,562 | 1,295
Utilities |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 3,617 | 2,944 | 2,750
Utilities | Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 3,507 | 2,831 | 2,626
Other non-606 revenue |  |  |  |  |  |  |  |  | 31 | 37 | 35
Revenues |  |  |  |  |  |  |  |  | 3,538 | 2,868 | 2,661
Utilities | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 75 | 73 | 86
Other non-606 revenue |  |  |  |  |  |  |  |  | 4 | 3 | 3
Revenues |  |  |  |  |  |  |  |  | 79 | 76 | 89
Energy Infrastructure |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 7,204 | 6,702 | 5,679
Energy Infrastructure | Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other non-606 revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Energy Infrastructure | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 6,871 | 6,143 | 5,172
Other non-606 revenue |  |  |  |  |  |  |  |  | 333 | 559 | 507
Revenues |  |  |  |  |  |  |  |  | 7,204 | 6,702 | 5,679
New Energy Technologies |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 3 | 7 | 143
New Energy Technologies | Regulated Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other non-606 revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
New Energy Technologies | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 1 | 6 | 143
Other non-606 revenue |  |  |  |  |  |  |  |  | 2 | 1 | 0
Revenues |  |  |  |  |  |  |  |  | $ 3 | $ 7 | $ 143

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