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Commitments and Contingencies (Charitable Commitments) (Detail) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2023 | Dec. 31, 2022
Other Deferred Credits and Other Liabilities |  |  |
Recorded Unconditional Purchase Obligation [Line Items] |  |  |
Charitable commitments |  | $ 8 | $ 32
Other Current Liabilities |  |  |
Recorded Unconditional Purchase Obligation [Line Items] |  |  |
Charitable commitments |  | $ 6 | $ 11
Other Income |  |  |
Recorded Unconditional Purchase Obligation [Line Items] |  |  |
Charitable expenses | $ 80 |  |

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- Definition Charitable expenses. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-6 + Details
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