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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Valuation Allowance [Line Items] |  |  |  |
Effective income tax rate reconciliation, estimated tax rate |  | (11.10%) |  |
Effective income tax rate | 5.00% | 5.20% | 35.90% |
Effective income tax rate reconciliation, tax contingency, amount | $ 335 |  |  |
Deferred tax assets, valuation allowance expense | 155 |  |  |
Valuation allowance |  |  |  | $ 4,550
Unrecognized tax benefits |  |  |  | $ 1,131
Unrecognized tax benefits, decrease resulting from settlements with taxing authorities | $ 625 |  |  |
Minimum |  |  |  |
Valuation Allowance [Line Items] |  |  |  |
Deferred tax liability, valuation allowance measurement duration |  |  |  | 5 years
Deferred tax asset, valuation allowance measurement duration |  |  |  | 15 years
Maximum |  |  |  |
Valuation Allowance [Line Items] |  |  |  |
Deferred tax liability, valuation allowance measurement duration |  |  |  | 10 years
Deferred tax asset, valuation allowance measurement duration |  |  |  | 20 years

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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