Other receivables (Detail) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Insurance and Other [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Insurance premiums receivable | $ 19,925 | $ 18,656 |
| Reinsurance recoverables | 4,845 | 4,975 |
| Trade receivables | 18,211 | 16,126 |
| Other | 5,248 | 5,279 |
| Allowances for credit losses | (737) | (705) |
| Other receivables | 47,492 | 44,331 |
| Railroad, Utilities and Energy [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Trade receivables | 3,725 | 3,782 |
| Other | 634 | 698 |
| Allowances for credit losses | (92) | (93) |
| Receivables | $ 4,267 | $ 4,387 |
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- Definition Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other. No definition available.
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Gross amount, as of the balance sheet date, due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, before deducting the allowance for doubtful accounts. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before valuation allowance recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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