v3.25.4

Additional financial information - Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liabilities for unrecognized tax benefits	$ 140	$ 167	$ 161	$ 128
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total Other noncurrent liabilities	Total Other noncurrent liabilities
Finance lease liabilities	$ 327	$ 312
Asset retirement obligations	255	242
Pension liabilities	229	235
Contract liabilities	401	341
Environmental remediation liabilities	60	54
Self-insurance reserves	102	62
Other	140	108
Total Other noncurrent liabilities	$ 1,654	$ 1,521

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

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

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Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are expected to be paid after one year (or the normal operating cycle, if longer), from the balance sheet date.

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Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid after one year (or the normal operating cycle, if longer).

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Amount of unrecognized tax benefits.

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