Segment Information and Concentrations - Net Income Reconciled to Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Corporate and other income and expenses not allocated to reportable segments	$ 75	$ 52
Depreciation and amortization	66	59
Acquisition-related amortization of intangibles	14	17
Interest expense	39	83
Interest income	(2)	(3)
Income tax expense (benefit)	(14)	5
Stock-based compensation expense	13	25
Transformation and restructuring costs	32	3
Separation costs	5	2
Loss (gain) on disposal of businesses	(7)	(3)
Foreign currency devaluation	15	0
Fraudulent ACH disbursements	(1)	2
Cyber ransomware incident recovery costs	0	0
Income (loss) from continuing operations	(40)	(66)
Operating Segments
Segment Reporting Information [Line Items]
Adjusted EBITDA by segment	$ 195	$ 176