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Fair Value (Instruments Not Measured at Fair Value) (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
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Estimate of Fair Value Measurement [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Accounts receivable - noncurrent | [1] | $ 229 | $ 294
Liabilities, Fair Value Disclosure [Abstract] |  |  |
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 19,851 | 18,527
Recourse debt |  | 4,231 | 3,505
Carrying Amount [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Accounts receivable - noncurrent | [1] | 190 | 255
Liabilities, Fair Value Disclosure [Abstract] |  |  |
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 20,073 | 19,429
Recourse debt |  | 4,581 | 3,894
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 18,513 | 17,846
Level 1 [Member] | Estimate of Fair Value Measurement [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Accounts receivable - noncurrent |  | 0 | 0
Liabilities, Fair Value Disclosure [Abstract] |  |  |
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 0 | 0
Recourse debt |  | 0 | 0
Level 2 [Member] | Estimate of Fair Value Measurement [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Accounts receivable - noncurrent |  | 0 | 0
Liabilities, Fair Value Disclosure [Abstract] |  |  |
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 18,375 | 17,089
Recourse debt |  | 4,231 | 3,505
Level 3 [Member] | Estimate of Fair Value Measurement [Member] |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Accounts receivable - noncurrent | [1] | 229 | 294
Liabilities, Fair Value Disclosure [Abstract] |  |  |
Non-recourse debt, including $2,413 and $2,295, respectively, related to variable interest entities |  | 1,476 | 1,438
Recourse debt |  | $ 0 | $ 0
[1] | These amounts primarily relate to amounts due from CAMMESA, the administrator of the wholesale electricity market in Argentina, and amounts impacted by the Stabilization Funds enacted by the Chilean government, and are included in Other noncurrent assets in the accompanying Condensed Consolidated Balance Sheets.

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- Definition The non-current portion of the entity's non-recourse debt. Non-recourse debt is secured by the capital stock, physical assets, contracts and cash flows of the related subsidiary. The risk is limited to the respective subsidiary business and is without recourse to the Parent Company and other subsidiaries. + References No definition available. + Details
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481990/310-10-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(9)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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