Leases (Tables)

3 Months Ended

Mar. 31, 2022

Leases [Abstract]

Summary of Components of Lease Expense

The components of lease expense were as follows:

	Successor		Predecessor
	For the three months ended
	March 31,		March 31,
	2022		2021
	$		$
Operating lease expense		5		6

Summary of Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases was as follows:

		Successor		Predecessor
		For the three months ended
		March 31,		March 31,
		2022		2021
		$		$
Cash paid for amounts included in the measurement of lease    liabilities:
	Operating cash flows from operating leases		6		6
Right-of-use assets obtained in exchange for lease liabilities:
	Operating leases		4		1

Summary of Supplemental Balance Sheet Information Related to Leases

Supplemental balance sheet information related to leases was as follows:

			March 31,			December 31,
			2022			2021
			$			$
Operating leases
	Operating leases right-of-use assets			51			48
	Lease liabilities due within one year			19			19
	Long-term operating lease liabilities			35			36
				54			55
Finance leases
	Property, plant and equipment			4			5
	Accumulated depreciation			(1	)		(2	)
				3			3
	Long-term debt due within one year			1			1
	Long-term debt			3			3
				4			4
	Weighted-average remaining lease term
		Operating leases	4.2 years			4.3 years
		Finance leases	6.5 years			6.8 years
	Weighted-average discount rate
		Operating leases		3.2	%		3.2	%
		Finance leases		4.8	%		4.8	%

Summary of Maturities of Lease Liabilities

Maturities of lease liabilities at March 31, 2022 were as follows:

	Operating leases		Finance leases
	March 31,		March 31,
	2022		2022
	$		$
2022 (1)		18		1
2023		16		1
2024		13		1
2025		6		1
2026		3		1
Thereafter		5		1
Total lease payments		61		6
Less: Imputed interest		7		2
Total lease liabilities		54		4

⁽¹⁾ Represents the remaining nine months of 2022.