Future Contract Benefit (Summary Of Weighted-Average Interest Rates (Details)	Sep. 30, 2023	Dec. 31, 2022
Traditional Life [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.00%	5.10%
Current discount rate	5.60%	5.10%
Payout Annuities [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	3.90%	3.90%
Current discount rate	5.80%	5.30%
UL and Other [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.10%	5.00%
Group Protection [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	3.00%	2.80%
Current discount rate	5.70%	5.10%