ENVIRONMENTAL LIABILITIES AND EXPENDITURES - Current and Non-Current Environmental Remediation Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Current Portion:
Accrued liabilities	$ 151	$ 151
Non-Current Portion:
Deferred credit and other liabilities	1,704	1,719
Total current and non-current	$ 1,855	1,870
Environmental loss contingency, current, statement of financial position	Accrued liabilities
Ongoing Operations
Current Portion:
Accrued liabilities	$ 55	55
Non-Current Portion:
Deferred credit and other liabilities	137	141
Total current and non-current	192	196
Discontinued Operations
Current Portion:
Accrued liabilities	96	96
Non-Current Portion:
Deferred credit and other liabilities	1,567	1,578
Total current and non-current	$ 1,663	$ 1,674

Accrued Liabilities, Non Current

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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Indicates line item in statement of financial position that includes accrual for environmental loss contingency classified as current.

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