CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER’S EQUITY - USD ($) $ in Millions	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL:	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS), NET OF DEFERRED INCOME TAXES:	RETAINED EARNINGS:
Beginning balance (in shares) at Dec. 31, 2020		1,000
Beginning balance at Dec. 31, 2020			$ 1,101	$ 268	$ 5,045
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation plans			0
Net increase (decrease) during the period	$ (177)			(177)
Net income (loss)	800				800
Ending balance (in shares) at Dec. 31, 2021		1,000
Ending balance at Dec. 31, 2021	7,038		1,102	91	5,845
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation plans			0
Net increase (decrease) during the period	(939)			(939)
Net income (loss)	$ (445)				(445)
Ending balance (in shares) at Dec. 31, 2022	1,000	1,000
Ending balance at Dec. 31, 2022	$ 5,654		1,102	(848)	5,400
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation plans			0
Net increase (decrease) during the period	561			561
Net income (loss)	$ 972				972
Ending balance (in shares) at Dec. 31, 2023	1,000	1,000
Ending balance at Dec. 31, 2023	$ 7,187		$ 1,102	$ (287)	$ 6,372