Consolidated Statements Of Stockholder's Equity - USD ($) $ in Millions	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance as of beginning-of-period at Dec. 31, 2017	$ 10,713	$ 4,405	$ 3,327
Cumulative effect from adoption of new accounting standards at Dec. 31, 2017		(644)	644
Capital contributions from Lincoln National Corporation	500
Stock compensation/issued for benefit plans	6
Net income (loss)		827		$ 827
Other comprehensive income (loss), net of tax			(2,604)	(2,604)
Balance as of end-of-period at Jun. 30, 2018	11,219	4,588	1,367	17,174
Balance as of beginning-of-period at Mar. 31, 2018	10,712	4,168	2,357
Capital contributions from Lincoln National Corporation	500
Stock compensation/issued for benefit plans	7
Net income (loss)		420		420
Other comprehensive income (loss), net of tax			(990)	(990)
Balance as of end-of-period at Jun. 30, 2018	11,219	4,588	1,367	17,174
Balance as of beginning-of-period at Dec. 31, 2018	11,237	4,423	659	16,319
Stock compensation/issued for benefit plans	4
Net income (loss)		355		355
Dividends paid to Lincoln National Corporation		(400)
Other comprehensive income (loss), net of tax			3,866	3,866
Balance as of end-of-period at Jun. 30, 2019	11,241	4,378	4,525	20,144
Balance as of beginning-of-period at Mar. 31, 2019	11,240	4,356	2,654
Stock compensation/issued for benefit plans	1
Net income (loss)		222		222
Dividends paid to Lincoln National Corporation		(200)
Other comprehensive income (loss), net of tax			1,871	1,871
Balance as of end-of-period at Jun. 30, 2019	$ 11,241	$ 4,378	$ 4,525	$ 20,144