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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table presents our revenue from contracts with customers and other revenue for the periods indicated (in millions):
| Year Ended December 31, 2020
| US and Utilities SBU |  | South America SBU |  | MCAC SBU |  | Eurasia SBU |  | Corporate, Other and Eliminations |  | Total
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 2,626 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2,626 |
Other regulated revenue | 35 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 35 |
Total regulated revenue | 2,661 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,661 |
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | 1,015 |  |  | 3,151 |  |  | 1,668 |  |  | 594 |  |  | (10) |  |  | 6,418 |
Other non-regulated revenue (1) | 242 |  |  | 8 |  |  | 98 |  |  | 234 |  |  | (1) |  |  | 581 |
Total non-regulated revenue | 1,257 |  |  | 3,159 |  |  | $ | 1,766 |  |  | 828 |  |  | (11) |  |  | 6,999 |
Total revenue | $ | 3,918 |  |  | $ | 3,159 |  |  | $ | 1,766 |  |  | $ | 828 |  |  | $ | (11) |  |  | $ | 9,660 |
| Year Ended December 31, 2019
| US and Utilities SBU |  | South America SBU |  | MCAC SBU |  | Eurasia SBU |  | Corporate, Other and Eliminations |  | Total
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 2,979 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2,979 |
Other regulated revenue | 49 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 49 |
Total regulated revenue | 3,028 |  |  | — |  |  | $ | — |  |  | — |  |  | $ | — |  |  | 3,028 |
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | 767 |  |  | 3,205 |  |  | 1,788 |  |  | $ | 799 |  |  | (4) |  |  | $ | 6,555 |
Other non-regulated revenue (1) | 263 |  |  | 3 |  |  | 94 |  |  | 248 |  |  | (2) |  |  | 606 |
Total non-regulated revenue | 1,030 |  |  | $ | 3,208 |  |  | 1,882 |  |  | $ | 1,047 |  |  | (6) |  |  | $ | 7,161 |
Total revenue | $ | 4,058 |  |  | $ | 3,208 |  |  | $ | 1,882 |  |  | $ | 1,047 |  |  | $ | (6) |  |  | $ | 10,189 |
| Year Ended December 31, 2018
| US and Utilities SBU |  | South America SBU |  | MCAC SBU |  | Eurasia SBU |  | Corporate, Other and Eliminations |  | Total
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 2,885 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2,885 |
Other regulated revenue | 54 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 54 |
Total regulated revenue | 2,939 |  |  | — |  |  | $ | — |  |  | — |  |  | $ | — |  |  | 2,939 |
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | 972 |  |  | 3,529 |  |  | 1,642 |  |  | $ | 943 |  |  | (11) |  |  | $ | 7,075 |
Other non-regulated revenue (1) | 319 |  |  | 4 |  |  | 86 |  |  | 312 |  |  | 1 |  |  | 722 |
Total non-regulated revenue | 1,291 |  |  | $ | 3,533 |  |  | 1,728 |  |  | $ | 1,255 |  |  | (10) |  |  | $ | 7,797 |
Total revenue | $ | 4,230 |  |  | $ | 3,533 |  |  | $ | 1,728 |  |  | $ | 1,255 |  |  | $ | (10) |  |  | $ | 10,736 |
_____________________________ (1)Other non-regulated revenue primarily includes lease and derivative revenue not accounted for under ASC 606.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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