Business Segments - Summary of Operating Results by Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Total revenue	$ 577	$ 439	$ 1,589	$ 1,200
Operating profit (loss):
Total operating profit (loss)	44	10	96	2
United States [Member]
Revenue:
Total revenue	435	312	1,177	860
Operating profit (loss):
Total operating profit (loss)	31	4	77	(12)
Canada [Member]
Revenue:
Total revenue	86	68	240	177
Operating profit (loss):
Total operating profit (loss)	10	5	23	11
International [Member]
Revenue:
Total revenue	56	59	172	163
Operating profit (loss):
Total operating profit (loss)	$ 3	$ 1	$ (4)	$ 3