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v3.21.1

Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | $ 2,635 | $ 2,338
Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 698 | 703
Other non-606 revenue |  | 9 | 9
Revenue |  | 707 | 712
Non-regulated revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 1,823 | 1,451
Other non-606 revenue | [1] | 105 | 175
Revenue |  | 1,928 | 1,626
US and Utilities [Domain] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | 949 | 971
US and Utilities [Domain] | Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 698 | 703
Other non-606 revenue |  | 9 | 9
Revenue |  | 707 | 712
US and Utilities [Domain] | Non-regulated revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 224 | 163
Other non-606 revenue | [1] | 18 | 96
Revenue |  | 242 | 259
MCAC [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | 535 | 432
MCAC [Member] | Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 0 | 0
Other non-606 revenue |  | 0 | 0
Revenue |  | 0 | 0
MCAC [Member] | Non-regulated revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 510 | 408
Other non-606 revenue | [1] | 25 | 24
Revenue |  | 535 | 432
Eurasia - Generation [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | 270 | 225
Eurasia - Generation [Member] | Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 0 | 0
Other non-606 revenue |  | 0 | 0
Revenue |  | 0 | 0
Eurasia - Generation [Member] | Non-regulated revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 209 | 171
Other non-606 revenue | [1] | 61 | 54
Revenue |  | 270 | 225
Corporate Other And Other Eliminations [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | (3) | (2)
Corporate Other And Other Eliminations [Member] | Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 0 | 0
Other non-606 revenue |  | 0 | 0
Revenue |  | 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 |  | (3) | (2)
Other non-606 revenue | [1] | 0 | 0
Revenue |  | (3) | (2)
South American SBU |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue |  | 884 | 712
South American SBU | Regulated Revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 0 | 0
Other non-606 revenue |  | 0 | 0
Revenue |  | 0 | 0
South American SBU | Non-regulated revenue [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 883 | 711
Other non-606 revenue | [1] | 1 | 1
Revenue |  | $ 884 | $ 712
[1] | Other non-regulated revenue primarily includes lease and derivative revenue not accounted for under ASC 606.

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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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