Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
COMPREHENSIVE INCOME (LOSS)
Net income (loss)		$ (19)	$ 1
Other comprehensive income (loss), net of income taxes:
Change in unrealized gains (losses), net of adjustment	[1]	(150)	(73)
Other comprehensive income (loss), net of income taxes		(150)	(73)
Comprehensive income (loss)		$ (169)	$ (72)

[1] See Note 9 of the Notes to these Financial Statements for details of change in unrealized gains (losses), net of adjustments.