Guarantees	3 Months Ended
	Mar. 31, 2022
Guarantees [Abstract]
Guarantees	GuaranteesThe maximum potential amount of future payments that we could be required to make under outstanding performance guarantees, which represents the remaining cost of work to be performed, was estimated to be $14 billion as of March 31, 2022. For cost reimbursable contracts, amounts that may become payable pursuant to guarantee provisions are normally recoverable from the client for work performed. For lump-sum contracts, the performance guarantee amount is the cost to complete the contracted work, less amounts remaining to be billed to the client under the contract. Remaining billable amounts could be greater or less than the cost to complete. In those cases where costs exceed the remaining amounts payable under the contract, we may have recourse to third parties, such as owners, partners, subcontractors or vendors for claims. The performance guarantee obligation was not material as of March 31, 2022 and December 31, 2021.