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v3.25.2

Variable Interest Entities (Detail) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Variable Interest Entity |  |
Carrying value of debt | $ 24,020 | $ 23,900
Assets | 45,722 | 44,567
Variable Interest Entity, Primary Beneficiary [Member] |  |
Variable Interest Entity |  |
Assets | 135 | 128
Low income housing investments [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entity |  |
Aggregate investment balance | 660 | 707
Carrying value of debt | 640 | 670
Trust For Final Capping, Closure, Post-closure Or Environmental Remediation Obligations [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entity |  |
Aggregate investment balance | $ 117 | $ 111

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