CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash Flows from Operating Activities
Net income (loss)	$ (439)	$ 657
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	248	57
Market risk benefit (gain) loss	618	(697)
Sales and maturities (purchases) of trading securities, net	58	110
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads	147	191
Accrued investment income	(14)	11
Insurance liabilities and reinsurance-related balances	19	(724)
Accrued expenses	(214)	(196)
Federal income tax accruals	(152)	166
Cash management agreement	(124)	(324)
Other	(404)	(717)
Net cash provided by (used in) operating activities	(257)	(1,466)
Cash Flows from Investing Activities
Purchases of available-for-sale securities and equity securities	(3,725)	(2,419)
Sales of available-for-sale securities and equity securities	217	774
Maturities of available-for-sale securities	2,674	1,632
Purchases of alternative investments	(388)	(312)
Sales and repayments of alternative investments	192	19
Issuance of mortgage loans on real estate	(919)	(571)
Repayment and maturities of mortgage loans on real estate	502	267
Repayment (issuance) of policy loans, net	(54)	(2)
Net change in collateral on investments, certain derivatives and related settlements	(815)	2,149
Other	(67)	3
Net cash provided by (used in) investing activities	(2,383)	1,540
Cash Flows from Financing Activities
Issuance (payment) of short-term debt	161	441
Payment related to sale-leaseback transactions	(2)	(4)
Payment related to certain financing arrangements	(14)	(16)
Deposits	4,431	3,599
Withdrawals	(3,123)	(3,206)
Transfers from (to) separate accounts, net	(73)	(90)
Common stock issued for benefit plans	(6)	(4)
Dividends paid to Lincoln National Corporation	(230)	(180)
Net cash provided by (used in) financing activities	1,144	540
Net increase (decrease) in cash, invested cash and restricted cash	(1,496)	614
Cash, invested cash and restricted cash as of beginning-of-year	4,505	3,193
Cash, invested cash and restricted cash as of end-of-period	$ 3,009	$ 3,807