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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 |  |  |  |  |  |  |  |  | 8,639 |  | 7,586 |  | 6,418
Other non-606 revenue |  |  |  |  |  |  |  |  | 440 | [1] | 687 | [1] | 581
Revenues |  |  |  |  |  |  |  |  | 9,079 |  | 8,273 |  | 6,999
US and Utilities [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 5,013 |  | 4,335 |  | 3,918
US and Utilities [Domain] | 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
US and Utilities [Domain] | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 1,374 |  | 1,132 |  | 1,015
Other non-606 revenue |  |  |  |  |  |  |  |  | 101 | [1] | 335 | [1] | 242
Revenues |  |  |  |  |  |  |  |  | 1,475 |  | 1,467 |  | 1,257
South America |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 3,539 |  | 3,541 |  | 3,159
South America | 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
South America | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 3,514 |  | 3,531 |  | 3,151
Other non-606 revenue |  |  |  |  |  |  |  |  | 25 | [1] | 10 | [1] | 8
Revenues |  |  |  |  |  |  |  |  | 3,539 |  | 3,541 |  | 3,159
MCAC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 2,868 |  | 2,157 |  | 1,766
MCAC [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
MCAC [Member] | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 2,770 |  | 2,057 |  | 1,668
Other non-606 revenue |  |  |  |  |  |  |  |  | 98 | [1] | 100 | [1] | 98
Revenues |  |  |  |  |  |  |  |  | 2,868 |  | 2,157 |  | 1,766
EURASIA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,217 |  | 1,123 |  | 828
EURASIA [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
EURASIA [Member] | Non-regulated revenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 1,002 |  | 881 |  | 594
Other non-606 revenue |  |  |  |  |  |  |  |  | 215 | [1] | 242 | [1] | 234
Revenues |  |  |  |  |  |  |  |  | 1,217 |  | 1,123 |  | 828
Corporate Other And Other Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | (20) |  | (15) |  | (11)
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 |  |  |  |  |  |  |  |  | (21) |  | (15) |  | (10)
Other non-606 revenue |  |  |  |  |  |  |  |  | 1 | [1] | 0 | [1] | (1)
Revenues |  |  |  |  |  |  |  |  | $ (20) |  | $ (15) |  | $ (11)
[1] | Other non-regulated revenue primarily includes lease and derivative revenue not accounted for under ASC 606.

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