Contract Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Contract assets
Unbilled receivables - reimbursable contracts	$ 854	$ 738
Contract work in progress - lump sum contracts	137	177
Contract assets	991	915
Advance billings deducted from contract assets	163	220
Information about contract liabilities:
Provision for anticipated losses on contracts included in contract liabilities	129	212
Revenue recognized that was included in contract liabilities as of January 1	616	818
Claim revenue for costs	531	498
Construction contract cost, subcontractor	$ 24	$ 0

Contract Assets

No definition available.

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- Definition

The amount of advances that are payments on account of contract assets.

+ References

No definition available.

+ Details

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- Definition

Information About Contract Liabilities

+ References

No definition available.

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- Definition

Work in Progress, Contract Services

+ References

No definition available.

+ Details

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

+ Details

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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- Definition

Amount of billed or unbilled claims or other similar items subject to uncertainty concerning their determination or ultimate realization under long-term contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
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- Definition

Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 605
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-Name Accounting Standards Codification
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- Definition

Amount of cost incurred on construction contract for unapproved change order, claim, or similar item subject to uncertainty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 910
-SubTopic 20
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-Subparagraph (a)
-Publisher FASB
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