| Schedule of Revenues Disaggregated by Revenue Sources |
The following tables present the Company’s revenues disaggregated by revenue sources: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Nine Months Ended | | | | | | June 30,
2026 | | June 30,
2025 | | June 30,
2026 | | June 30,
2025 | | | | | | (in millions) | | | | | | Cost reimbursable | $ | 1,261.6 | | | $ | 1,619.1 | | | $ | 4,499.3 | | | $ | 4,588.4 | | | | | | | Guaranteed maximum price | 1,311.5 | | | 1,575.8 | | | 3,825.6 | | | 4,446.8 | | | | | | | Fixed-price | 1,012.9 | | | 983.5 | | | 2,893.1 | | | 2,929.0 | | | | | | | Total revenue | $ | 3,586.0 | | | $ | 4,178.4 | | | $ | 11,218.0 | | | $ | 11,964.2 | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Nine Months Ended | | | | | June 30,
2026 | | June 30,
2025 | | June 30,
2026 | | June 30,
2025 | | | | | (in millions) | | | | | Americas | $ | 2,632.9 | | | $ | 3,277.2 | | | $ | 8,521.8 | | | $ | 9,286.2 | | | | | | Europe, Middle East, India, Africa | 559.5 | | | 536.4 | | | 1,627.5 | | | 1,604.7 | | | | | | Asia-Australia-Pacific | 393.6 | | | 364.8 | | | 1,068.7 | | | 1,073.3 | | | | | | Total revenue | $ | 3,586.0 | | | $ | 4,178.4 | | | $ | 11,218.0 | | | $ | 11,964.2 | | | | |
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| Schedule of Net Accounts Receivable |
Net accounts receivable consisted of the following: | | | | | | | | | | | | | June 30,
2026 | | September 30,
2025 | | (in millions) | | Billed | $ | 1,816.2 | | | $ | 1,934.3 | | | Contract retentions | 661.8 | | | 647.6 | | | Total accounts receivable—gross | 2,478.0 | | | 2,581.9 | | | Allowance for doubtful accounts and credit losses | (88.3) | | | (84.8) | | | Total accounts receivable—net | $ | 2,389.7 | | | $ | 2,497.1 | |
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