CONSOLIDATED STATEMENTS OF STOCKHOLDER’S EQUITY - USD ($) $ in Millions	Total	Common Stock	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)
Balance as of beginning-of-year at Dec. 31, 2023		$ 12,961	$ (869)	$ (1,585)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution from Lincoln National Corporation		0
Stock compensation/issued for benefit plans		43
Net income (loss)	$ 818		818
Dividends paid to Lincoln National Corporation			(1,249)
Non-cash dividend to Lincoln National Corporation for settlement of an inter-company tax receivable	0		0
Other comprehensive income (loss), net of tax	664			664
Balance as of end-of-period at Sep. 30, 2024	10,783	13,004	(1,300)	(921)
Balance as of beginning-of-year at Jun. 30, 2024		12,991	(575)	(1,387)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution from Lincoln National Corporation		0
Stock compensation/issued for benefit plans		13
Net income (loss)	(600)		(600)
Dividends paid to Lincoln National Corporation			(125)
Non-cash dividend to Lincoln National Corporation for settlement of an inter-company tax receivable			0
Other comprehensive income (loss), net of tax	466			466
Balance as of end-of-period at Sep. 30, 2024	10,783	13,004	(1,300)	(921)
Balance as of beginning-of-year at Dec. 31, 2024	10,512	13,015	(173)	(2,330)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution from Lincoln National Corporation		962
Stock compensation/issued for benefit plans		51
Net income (loss)	463		463
Dividends paid to Lincoln National Corporation			(565)
Non-cash dividend to Lincoln National Corporation for settlement of an inter-company tax receivable	(207)		(207)
Other comprehensive income (loss), net of tax	598			598
Balance as of end-of-period at Sep. 30, 2025	11,814	14,028	(482)	(1,732)
Balance as of beginning-of-year at Jun. 30, 2025		13,853	(385)	(1,954)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution from Lincoln National Corporation		162
Stock compensation/issued for benefit plans		13
Net income (loss)	275		275
Dividends paid to Lincoln National Corporation			(165)
Non-cash dividend to Lincoln National Corporation for settlement of an inter-company tax receivable			(207)
Other comprehensive income (loss), net of tax	222			222
Balance as of end-of-period at Sep. 30, 2025	$ 11,814	$ 14,028	$ (482)	$ (1,732)