Contingencies - Changes in Carrying Value of Recorded Environmental Remediation Reserves (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Commitments and Contingencies Disclosure [Abstract] | |||||
| Beginning balance | $ 282 | $ 220 | $ 220 | ||
| Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Environmental remediation (O) | Environmental remediation (O) | Environmental remediation (O) | ||
| Liabilities incurred | $ 5 | $ 13 | $ 9 | 13 | $ 85 |
| Cash payments | (10) | $ (5) | (16) | $ (13) | (25) |
| Reversals of previously recorded liabilities | (6) | (6) | (2) | ||
| Foreign currency translation and other | 16 | 4 | |||
| Ending balance | $ 285 | $ 285 | $ 282 | ||
| X | ||||||||||
- Definition Accrual for environmental loss contingencies foreign currency translation gain (loss) and other. No definition available.
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| X | ||||||||||
- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of cash outflow to settle environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes accrual for environmental loss contingency. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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