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v3.22.2.2

Segment Information - Schedule of Total Revenues, Segment Operating Profit and Total Asset for Reporting Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2022 | Oct. 01, 2021 | Oct. 02, 2020
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Profit |  | $ 917,850 | $ 688,089 | $ 535,973
Restructuring, Transaction and Other Charges |  | (197,884) | (350,394) | (327,413)
Total Other (Expense) Income, net |  | (41,503) | 7,513 | (94,770)
Earnings from Continuing Operations Before Taxes |  | 876,347 | 695,602 | 441,203
Gain (loss) on litigation settlement |  | 19,500 |  |
Loss related to litigation settlement |  | (19,500) |  |
Intangibles amortization |  | 198,600 | 149,800 | 90,600
Recorded third-party environmental recoveries receivable | $ 27,000 | 27,000 |  |
Impairment of real estate |  | 71,000 | 2,400 | 161,400
Cost incurred in investment |  |  | 297,800 |
Gain related to cost-method Investments |  | 13,900 |  |
Gain on termination of lease |  | 8,700 |  |
Impairment of equity method investment |  |  |  | (162,000)
JKC Australia L N G Pty Limited | Settled Litigation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain (loss) on litigation settlement |  | (91,300) |  |
Loss related to litigation settlement |  | 91,300 |  |
AWE ML |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain on termination of lease |  | 8,700 |  |
Impairment of equity method investment |  |  | (38,500) |
C3.ai. Inc. |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Fair value adjustments |  |  | (49,600) |
ECR Business |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Fair value adjustments |  |  | 34,700 | (74,300)
CH2M HILL Companies, Ltd. |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Impairment of real estate | $ 78,300 |  | 2,400 | 161,400
Gain on termination of lease |  | (8,700) |  |
Impairment of equity method investment |  | (91,300) |  |
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Profit |  | 1,480,174 | 1,378,612 | 1,112,777
Corporate Non Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other Corporate Expenses |  | (364,440) | (340,129) | (249,391)
Critical Mission Solutions | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Profit |  | 424,385 | 447,161 | 372,070
People & Places Solutions | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Profit |  | 823,564 | 780,380 | 740,707
PA Consulting | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Operating Profit |  | $ 232,225 | $ 151,071 | $ 0

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