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Amount of obligations incurred and payable classified as other.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of net assets (liabilities).

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Amount of gain (loss) on sale or disposal of an equity method investment.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Partnerships and Joint Ventures (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Jul. 31, 2026	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Variable interest entity information
Proceeds from the sale of NuScale shares		$ 1,831	$ 0
COOEC Fluor Heavy Industries Co., Ltd. \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Variable interest entity information
Proceeds from the sale of NuScale shares		124
Loss on sale of investment		124
Mexico Joint Venture \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Subsequent Event
Variable interest entity information
Proceeds from the sale of NuScale shares	$ 175
Estimated pre tax gain	90
Estimated tax effect	$ 33
Variable interest entity, not primary beneficiary
Variable interest entity information
Net ( liability) assets		458		$ 425
Variable interest entity, not primary beneficiary \| Future funding commitment
Variable interest entity information
Commitment amount		26
Balance Sheet Location [Axis]: us-gaap:AccountsNotesAndLoansReceivableNetCurrent \| Related Party \| Variable interest entity, not primary beneficiary
Variable interest entity information
Accounts receivable, net		248		219
Balance Sheet Location [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent \| Related Party
Variable interest entity information
Investments loss position in other accrued liabilities		$ 54		$ 54