Geographic Information - Revenues and Long-lived Assets by Geographical Area (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 1,381	$ 649	$ 2,455	$ 1,048
Property and equipment, net	9,538		9,538		$ 9,994
United States
Segment Reporting Information [Line Items]
Revenues	1,362	646	2,428	1,043
Property and equipment, net	9,466		9,466		9,919
Brazil
Segment Reporting Information [Line Items]
Revenues	3	1	7	2
Property and equipment, net	31		31		30
Canada
Segment Reporting Information [Line Items]
Revenues	16	$ 2	20	$ 3
Property and equipment, net	$ 41		$ 41		$ 45