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Remaining Unsatisfied Performance Obligations
 12 Months Ended
Dec. 31, 2025
Revenue from Contract with Customer [Abstract]  
Remaining Unsatisfied Performance Obligations Contract Assets and Liabilities
The following summarizes information about our contract assets and liabilities:
December 31,
(in millions)20252024
Information about contract assets:
Contract assets
Unbilled receivables - reimbursable contracts$1,100 $1,050 
Contract work in progress - lump sum contracts46 88 
Contract assets$1,146 $1,138 
Year Ended December 31,
20252024
Information about contract liabilities:
Revenue recognized that was included in contract liabilities as of January 1$542 $511 
We periodically evaluate our project forecasts and the amounts recognized with respect to our claims and unapproved change orders. We include estimated amounts for claims and unapproved change orders in project revenue to the extent it is probable we will realize those amounts. As of December 31, 2025 and 2024, we had recorded $214 million and $244 million, respectively, of revenue associated with claims for costs incurred to date. The settlement of these claims, which are included in contract assets and accounts receivable on the balance sheet, may extend beyond one year. Additional costs, which will increase this balance over time, are expected to be incurred in future periods. We had up to $105 million and $23 million of back charges that may be disputed as of December 31, 2025 and 2024, respectively. Remaining Unsatisfied Performance Obligations
We estimate that our RUPO will be satisfied over the following periods:
(in millions)December 31, 2025
Within 1 year$12,047 
1 to 2 years6,106 
Thereafter6,168 
Total RUPO$24,321