Other Contract Holder Funds - Schedule of Policyholder Account Balance and Liability for Unpaid Claims and Claims Adjustment Expense (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	$ 68,703	$ 67,663
Variable Annuity
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	6,193	6,351
RILA
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	21,394	20,282
Fixed Annuity
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	9,300	9,494
Fixed Index Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	8,255	7,946
Payout Annuity
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	840	854
Closed Block Life
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	10,381	10,494
Closed Block Annuity
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	1,035	1,057
Institutional Products
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	11,141	11,021
Other Product Lines
Liability for Future Policy Benefit, Activity [Line Items]
Total other contract holder funds	$ 164	$ 164