Share-Based Compensation Expense (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Unit Activity

The following tables summarizes the unit activity related to the RSUs and PRSUs during the Predecessor periods as follows:

				Weighted					Weighted
				Average					Average
				Grant Date					Grant Date
				Fair Value					Fair Value
Predecessor	RSUs			Per Unit		PRSUs			Per Unit
Balance as of December 31, 2019		2,907		$	4,785		7,563		$	3,350
Granted		1,990			4,578		5,469			4,572
Vested		(944	)		5,374		—			—
Forfeited		(954	)		4,491		(3,809	)		3,513
Balance as of December 31, 2020		2,999		$	4,563		9,223		$	4,015
Granted		254			28,875		389			24,420
Vested		(517	)		5,459		—			—
Forfeited		(121	)		4,527		(567	)		2,626
Balance as of June 30, 2021		2,614		$	6,741		9,045		$	4,888

The following tables summarizes the unit activity related to the RSUs and PRSUs during the Successor years ended December 31, 2023, December 31, 2022 and the Successor six months ended December 31, 2021:

				Weighted					Weighted
				Average					Average
				Grant Date					Grant Date
				Fair Value					Fair Value
	RSUs(1)			Per Unit		PRSUs(1)(2)			Per Unit
Balance as of July 1, 2021		854,764		$	9.91		7,816,743		$	9.56
Granted		9,475,330			12.60		9,107,424			12.63
Vested		(3,014,054	)		12.62		—			—
Forfeited		(167,624	)		12.64		(181,054	)		12.51
Balance as of December 31, 2021		7,148,416		$	12.27		16,743,113		$	11.20
Granted		5,019,998			9.01		15,816,619			11.76
Vested		(3,053,701	)		12.24		—			—
Forfeited		(1,348,552	)		11.46		(2,474,009	)		11.90
Balance as of December 31, 2022		7,766,161		$	10.28		30,085,723		$	11.38
Granted		6,598,201			8.72		5,481,499			8.82
Vested		(4,338,325	)		8.81		(3,860,600	)		10.06
Forfeited		(1,851,225	)		9.53		(3,664,948	)		9.77
Balance as of December 31, 2023		8,174,812		$	9.78		28,041,674		$	11.25

(1)These share totals include both unvested shares and restricted stock units.

(2)PRSUs granted includes both new grants in the period as well as adjustments in the period to existing grants to account for the expected level of achievement of the performance-based vesting requirements.

Schedule of Share-Based Compensation Costs Related to RSUs and PRSUs

Total share-based compensation costs related to the RSUs and PRSUs are recorded in the Consolidated Statement of Comprehensive Income (Loss) as follows (in millions):

	Successor						Predecessor
	Year Ended		Year Ended		Six Months Ended		Six Months Ended
	December 31,		December 31,		December 31,		June 30,
	2023		2022		2021		2021
Cost of services, exclusive of depreciation and amortization	$	39	$	40	$	19	$	1
Selling, general and administrative		121		141		48		4
Total share-based compensation expense	$	160	$	181	$	67	$	5