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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