Condensed Consolidated Statements of Changes in Shareholder's Equity - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Deficit)
Beginning Balance at Dec. 31, 2020	$ 4,897,000,000	$ 3,000,000	$ 2,873,000,000	$ 1,882,000,000	$ 139,000,000
Comprehensive income (loss):
Net income (loss)	569,000,000	0	0	0	569,000,000
Ending Balance at Jun. 30, 2021	4,985,000,000	3,000,000	3,191,000,000	1,635,000,000	156,000,000
Comprehensive income (loss):
Dividends	(557,000,000)		(5,000,000)		(552,000,000)
Adjustments to Additional Paid in Capital, Other	323,000,000		323,000,000
Other comprehensive income (loss), after tax	(247,000,000)	0	0	(247,000,000)	0
Comprehensive income (loss)	322,000,000
Beginning Balance at Mar. 31, 2021	4,926,000,000	3,000,000	3,196,000,000	1,283,000,000	444,000,000
Comprehensive income (loss):
Net income (loss)	186,000,000	0	0	0	186,000,000
Ending Balance at Jun. 30, 2021	4,985,000,000	3,000,000	3,191,000,000	1,635,000,000	156,000,000
Comprehensive income (loss):
Dividends	(479,000,000)		(5,000,000)		(474,000,000)
Other comprehensive income (loss), after tax	352,000,000	0	0	352,000,000	0
Comprehensive income (loss)	538,000,000
Beginning Balance at Dec. 31, 2021	5,030,000,000	3,000,000	3,191,000,000	1,423,000,000	413,000,000
Comprehensive income (loss):
Net income (loss)	54,000,000	0	0	0	54,000,000
Ending Balance at Jun. 30, 2022	2,045,000,000	3,000,000	2,778,000,000	(759,000,000)	23,000,000
Comprehensive income (loss):
Dividends	(857,000,000)		(413,000,000)		(444,000,000)
Other comprehensive income (loss), after tax	(2,182,000,000)	0	0	(2,182,000,000)	0
Comprehensive income (loss)	(2,128,000,000)
Beginning Balance at Mar. 31, 2022	3,894,000,000	3,000,000	3,191,000,000	303,000,000	397,000,000
Comprehensive income (loss):
Net income (loss)	22,000,000	0	0	0	22,000,000
Ending Balance at Jun. 30, 2022	2,045,000,000	3,000,000	2,778,000,000	(759,000,000)	23,000,000
Comprehensive income (loss):
Dividends	(809,000,000)		(413,000,000)		(396,000,000)
Other comprehensive income (loss), after tax	(1,062,000,000)	$ 0	$ 0	$ (1,062,000,000)	$ 0
Comprehensive income (loss)	$ (1,040,000,000)