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Summary of Significant Accounting Policies (Other Noncurrent Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Offsetting Assets [Line Items] |  |
Other (including amounts related to VIEs) | $ 3,964 | $ 3,400
Renewable Energy Program |  |
Offsetting Assets [Line Items] |  |
Other (including amounts related to VIEs) | $ 150 | $ 150

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- Definition Amount of noncurrent assets classified as other. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Details
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