Supplemental cash flow information (Detail) - USD ($) $ in Millions |
6 Months Ended | |
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Jun. 30, 2026 |
Jun. 30, 2025 |
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| Supplemental Cash Flow Information [Line Items] | ||
| Cash paid during the period for income taxes | $ 5,097 | $ 5,869 |
| Non-cash investing and financing activities: | ||
| Liabilities assumed in connection with business acquisitions | 1,310 | 9 |
| Insurance and Other [Member] | ||
| Supplemental Cash Flow Information [Line Items] | ||
| Cash paid during the period for interest | 701 | 719 |
| Railroad, Utilities and Energy [Member] | ||
| Supplemental Cash Flow Information [Line Items] | ||
| Cash paid during the period for interest | $ 1,945 | $ 1,878 |
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- Definition Supplemental Cash Flow Information [Line Items] No definition available.
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- Definition Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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