Segment Information - EBITDA Reconciliation to Net Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Adjusted EBITDA
Adjusted EBITDA	$ 100	$ 82	$ 252	$ 193
Amortization of intangibles	(6)	(5)	(17)	(16)
Depreciation	(17)	(16)	(51)	(47)
Restructuring costs	0	(2)	(5)	(10)
Interest expense	(5)	(10)	(17)	(27)
Deal-related transaction costs	(1)	(1)	(5)	(4)
Other one-time non-operational events	(2)	0	(4)	8
Income tax provision	(12)	(1)	(29)	(3)
Net earnings	57	47	124	94
Operating Segments | ASC
Adjusted EBITDA
Adjusted EBITDA	64	48	160	121
Operating Segments | IMS
Adjusted EBITDA
Adjusted EBITDA	36	34	92	72
Corporate & Eliminations
Adjusted EBITDA
Adjusted EBITDA	$ 0	$ 0	$ 0	$ 0