CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Cash Flows from Operating Activities
Net income (loss)	$ (93)	$ (439)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	(366)	248
Market risk benefit (gain) loss	711	618
Sales and maturities (purchases) of trading securities, net	103	58
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads	178	147
Accrued investment income	(25)	(14)
Insurance liabilities and reinsurance-related balances	173	(214)
Accrued expenses	(66)	(214)
Federal income tax accruals	(52)	(152)
Cash management agreement	(286)	(124)
Other	30	(171)
Net cash provided by (used in) operating activities	307	(257)
Cash Flows from Investing Activities
Purchases of available-for-sale securities and equity securities	(4,828)	(3,516)
Sales of available-for-sale securities and equity securities	379	8
Maturities of available-for-sale securities	2,551	2,674
Purchases of other investments	(412)	(388)
Sales and repayments of other investments	265	201
Issuance of mortgage loans on real estate	(1,384)	(919)
Repayment and maturities of mortgage loans on real estate	811	502
Repayment (issuance) of policy loans, net	19	(54)
Net change in collateral on investments, certain derivatives and related settlements	(945)	(815)
Other	(31)	(76)
Net cash provided by (used in) investing activities	(3,575)	(2,383)
Cash Flows from Financing Activities
Issuance (payment) of short-term debt	117	161
Payment related to sale-leaseback transactions	(1)	(2)
Payment related to certain financing arrangements	(15)	(14)
Deposits	4,944	4,431
Withdrawals	(3,227)	(3,123)
Transfers from (to) separate accounts, net	(497)	(73)
Common stock issued for benefit plans	(24)	(6)
Dividends paid to Lincoln National Corporation	(270)	(230)
Net cash provided by (used in) financing activities	1,027	1,144
Net increase (decrease) in cash and invested cash	(2,241)	(1,496)
Cash and invested cash as of beginning-of-year	7,946	4,505
Cash and invested cash as of end-of-period	$ 5,705	$ 3,009