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SEGMENT INFORMATION - Summary of Reconciliation Operating Income to EBITDA (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Net revenues | $ 6,928 | $ 6,558 | $ 3,940
EBITDA Reconciliation |  |  |
Operating income (loss) | 359 | 162 | 136
Plus: |  |  |
Investment income and other, net | 13 | 9 | 12
Non-service pension benefit | 12 | 42 | 0
Gain (loss) on extinguishment of debt | (7) | 5 | (9)
Depreciation | 79 | 77 | 75
Amortization | 224 | 227 | 127
EBITDA | 680 | 522 | 341
Total assets | 7,590 | 8,091 | 5,159
Capital expenditures | 86 | 79 | 55
Corporate and Eliminations |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Net revenues | (22) | (47) | (47)
EBITDA Reconciliation |  |  |
Operating income (loss) | (145) | (191) | (149)
Plus: |  |  |
Investment income and other, net | 1 | 1 | (3)
Gain (loss) on extinguishment of debt | (7) | 5 | (9)
Depreciation | 3 | 5 | 6
Amortization | 4 | 4 | 4
EBITDA | (144) | (176) | (151)
Total assets | 581 | 781 | 1,690
Capital expenditures | 13 | 5 | 1
Safety Services | Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Net revenues | 4,871 | 4,575 | 2,080
EBITDA Reconciliation |  |  |
Operating income (loss) | 396 | 256 | 207
Plus: |  |  |
Investment income and other, net | 3 | 1 | 6
Non-service pension benefit | 12 | 42 |
Gain (loss) on extinguishment of debt | 0 | 0 | 0
Depreciation | 27 | 26 | 8
Amortization | 169 | 167 | 66
EBITDA | 607 | 492 | 287
Total assets | 5,795 | 6,029 | 2,170
Capital expenditures | 25 | 25 | 6
Specialty Services | Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Net revenues | 2,079 | 2,030 | 1,907
EBITDA Reconciliation |  |  |
Operating income (loss) | 108 | 97 | 78
Plus: |  |  |
Investment income and other, net | 9 | 7 | 9
Non-service pension benefit | 0 | 0 |
Gain (loss) on extinguishment of debt | 0 | 0 | 0
Depreciation | 49 | 46 | 61
Amortization | 51 | 56 | 57
EBITDA | 217 | 206 | 205
Total assets | 1,214 | 1,281 | 1,299
Capital expenditures | $ 48 | $ 49 | $ 48

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