Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues
Insurance premiums	$ 1,579	$ 1,477
Fee income	1,379	1,458
Net investment income	1,466	1,411
Realized gain (loss)	(828)	181
Amortization of deferred gain on business sold through reinsurance	9	11
Other revenues	209	182
Total revenues	3,814	4,720
Expenses
Benefits	2,291	2,156
Interest credited	785	697
Market risk benefit (gain) loss	619	(1,359)
Policyholder liability remeasurement (gain) loss	(118)	41
Commissions and other expenses	1,300	1,253
Interest and debt expense	83	66
Spark program expense	24	31
Total expenses	4,984	2,885
Income (loss) before taxes	(1,170)	1,835
Federal income tax expense (benefit)	(289)	353
Net income (loss)	(881)	1,482
Other comprehensive income (loss), net of tax:
Unrealized investment gain (loss)	1,774	(7,498)
Market risk benefit non-performance risk gain (loss)	1,025	20
Policyholder liability discount remeasurement gain (loss)	(202)	811
Foreign currency translation adjustment	3	(5)
Funded status of employee benefit plans	(2)	3
Total other comprehensive income (loss), net of tax	2,598	(6,669)
Comprehensive income (loss)	1,717	(5,187)
Net Income (Loss) Available to Common Stockholders
Net income (loss)	(881)	1,482
Preferred stock dividends declared	(25)
Deferred units of LNC stock in our deferred compensation plans	(3)	(1)
Net income (loss) available to common stockholders	$ (909)	$ 1,481
Net Income (Loss) Per Common Share
Basic (in dollars per share)	$ (5.35)	$ 8.50
Diluted (in dollars per share)	(5.37)	8.39
Cash Dividends Declared Per Preferred Share	1,254.69
Common Stock [Member]
Net Income (Loss) Per Common Share
Cash Dividends Declared Per Preferred Share	1,254.69
Cash Dividends Declared Per Common Share	$ 0.45	$ 0.45