Revenues and Long-Lived Assets by Geographical Area (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 2,890	$ 1,620	$ 5,469
Property and equipment, net	9,994	9,416	9,671
United States
Segment Reporting Information [Line Items]
Revenues	2,866	1,600	5,381
Property and equipment, net	9,919	9,331	9,570
Brazil
Segment Reporting Information [Line Items]
Revenues	8	7	23
Property and equipment, net	30	34	45
Canada
Segment Reporting Information [Line Items]
Revenues	16	13	65
Property and equipment, net	$ 45	$ 51	$ 56