Primary Components of Net Deferred Tax Asset (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets
Net operating losses, general business credits, and capital loss carryovers	$ 262	$ 172
Property and equipment	3	3
Deferred revenue and expenses	17	17
Foreign exchange net losses (AOCI)	12	12
Total gross deferred tax assets	294	204
Less: Valuation allowance	(18)	(19)
Total deferred tax assets, net of valuation allowance	276	185
Deferred tax liabilities
Investments in domestic affiliates	(10)	(1)
Total gross deferred tax liabilities	(10)	(1)
Net deferred tax assets	$ 266	$ 184