{"cik": 2011286, "entity": "Amentum Holdings, Inc.", "tags": {"RevenueFromContractWithCustomerExcludingAssessedTax": [{"end": "2022-09-30", "val": 7676000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 7865000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 7865000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 8388000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 8388000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 14393000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "OperatingIncomeLoss": [{"end": "2022-09-30", "val": 121000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 57000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 57000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 291000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 291000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 480000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "NetIncomeLoss": [{"end": "2022-09-30", "val": -84000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": -314000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": -314000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": -82000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": -82000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 66000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "IncomeTaxExpenseBenefit": [{"end": "2022-09-30", "val": 14000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": -19000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": -19000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": -40000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": -40000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 56000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "Depreciation": [{"end": "2022-09-30", "val": 20000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 27000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 27000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 23000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 23000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 40000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "NetCashProvidedByUsedInOperatingActivities": [{"end": "2022-09-30", "val": 126000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 67000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 67000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 47000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 47000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 543000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "PaymentsToAcquirePropertyPlantAndEquipment": [{"end": "2022-09-30", "val": 18000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 12000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 12000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 11000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 11000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 27000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "StockholdersEquity": [{"end": "2023-09-29", "val": 375000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4460000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4460000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 4505000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": [{"end": "2021-10-01", "val": 822000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2022-09-30", "val": 706000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2022-09-30", "val": 706000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2023-09-29", "val": 416000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2023-09-29", "val": 416000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2024-09-27", "val": 4552000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4552000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 4620000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "Goodwill": [{"end": "2022-09-30", "val": 3002000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2023-09-29", "val": 2891000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2023-09-29", "val": 2891000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2024-09-27", "val": 5556000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 5556000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 5703000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "LongTermDebtNoncurrent": [{"end": "2023-09-29", "val": 4067000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4643000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4643000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 3901000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "LongTermDebtCurrent": [{"end": "2023-09-29", "val": 45000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 36000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 36000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 42000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "LongTermDebt": [{"end": "2023-09-29", "val": 4112000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4679000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 4679000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 3943000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "CashAndCashEquivalentsAtCarryingValue": [{"end": "2023-09-29", "val": 305000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 452000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 452000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 437000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "WeightedAverageNumberOfDilutedSharesOutstanding": [{"end": "2022-09-30", "val": 90000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 90000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 90000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 91000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 91000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 244000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "WeightedAverageNumberOfSharesOutstandingBasic": [{"end": "2022-09-30", "val": 90000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2021-10-02"}, {"end": "2023-09-29", "val": 90000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2022-10-01"}, {"end": "2023-09-29", "val": 90000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2022-10-01"}, {"end": "2024-09-27", "val": 91000000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17", "start": "2023-09-30"}, {"end": "2024-09-27", "val": 91000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2023-09-30"}, {"end": "2025-10-03", "val": 243000000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25", "start": "2024-09-28"}], "CommonStockSharesOutstanding": [{"end": "2023-09-29", "val": 0, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 243302173, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2024-09-27", "val": 243302173, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}, {"end": "2025-10-03", "val": 243464776, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}], "EntityCommonStockSharesOutstanding": [{"end": "2024-12-06", "val": 243302257, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2024-12-17"}, {"end": "2025-11-14", "val": 243597992, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2025-11-25"}]}}