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Deferred Compensation - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025
Deferred Equity Participation Plan (DEPP) |  |
Investments And Employee Deferred Compensation Plan [Line Items] |  |
Vesting period, years | 1 year |
Unearned deferred compensation, value | $ 141 | $ 81
Unearned deferred compensation, shares (in shares) | 1.8 | 1.8
Total intrinsic value of unvested equity based awards | $ 391 | $ 475
Deferred Cash Participation Plan (DCPP) |  |
Investments And Employee Deferred Compensation Plan [Line Items] |  |
Vesting period, years | 5 years |

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- Definition Unearned Deferred Compensation, Shares + References No definition available. + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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