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Segments and Geographic Information Segment and Geographic Information (Assets, Depreciation and Amortization and Capital Expenditures ) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Total Assets | $ 32,963 | $ 34,603 | $ 33,648
Depreciation and Amortization | 1,056 | 1,068 | 1,045
Capital Expenditures | 2,140 | 1,960 | 2,551
Interest Income | 298 | 268 | 318
Interest Expense | 911 | 1,038 | 1,050
Investments in and Advances to Affiliates | 1,080 | 835 | 966
Net Equity in Earnings (Losses) of Affiliates | (24) | (123) | (172)
Operating Segments [Member] | US and Utilities SBU |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Assets | 16,512 | 14,464 | 13,334
Depreciation and Amortization | 549 | 534 | 465
Capital Expenditures | 1,115 | 1,099 | 1,484
Interest Income | 28 | 17 | 18
Interest Expense | 362 | 371 | 301
Investments in and Advances to Affiliates | 510 | 568 | 465
Net Equity in Earnings (Losses) of Affiliates | 83 | (8) | 11
Operating Segments [Member] | South America |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Assets | 7,728 | 11,329 | 11,314
Depreciation and Amortization | 273 | 294 | 315
Capital Expenditures | 833 | 650 | 692
Interest Income | 100 | 64 | 95
Interest Expense | 239 | 237 | 285
Investments in and Advances to Affiliates | 19 | 13 | 77
Net Equity in Earnings (Losses) of Affiliates | 0 | (80) | (129)
Operating Segments [Member] | MCAC SBU |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Assets | 4,545 | 4,847 | 4,770
Depreciation and Amortization | 155 | 164 | 183
Capital Expenditures | 143 | 183 | 344
Interest Income | 7 | 14 | 22
Interest Expense | 139 | 157 | 142
Investments in and Advances to Affiliates | 144 | 168 | 107
Net Equity in Earnings (Losses) of Affiliates | (23) | (11) | (13)
Operating Segments [Member] | EURASIA [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Assets | 3,466 | 3,621 | 3,990
Depreciation and Amortization | 66 | 63 | 67
Capital Expenditures | 20 | 9 | 30
Interest Income | 161 | 171 | 180
Interest Expense | 98 | 113 | 127
Investments in and Advances to Affiliates | 0 | 1 | 215
Net Equity in Earnings (Losses) of Affiliates | 2 | 4 | (9)
Corporate, Non-Segment [Member] | Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Assets | 712 | 342 | 240
Depreciation and Amortization | 13 | 13 | 15
Capital Expenditures | 29 | 19 | 1
Interest Income | 2 | 2 | 3
Interest Expense | 73 | 160 | 195
Investments in and Advances to Affiliates | 407 | 85 | 102
Net Equity in Earnings (Losses) of Affiliates | $ (86) | $ (28) | $ (32)

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