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Income Taxes - Uncertain Tax Provisions (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward] |  |
Unrecognized tax benefits, beginning balance | $ 647 | $ 515
Activity on prior year tax positions | 1 | 13
Additions on current year tax positions | 131 | 154
Reductions on settlements with taxing authorities and expirations | (36) | (35)
Unrecognized tax benefits, ending balance | 743 | $ 647
Unrecognized tax benefits that would impact the effective tax rate | $ 604 |

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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities and lapses of applicable statutes of limitations. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B + Details
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