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Fair Value (Financial Instruments Carried at Other Than Fair Value) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Assets
Policy loans	$ 1,651	$ 1,331
Liabilities
Separate account liabilities	90,332	88,271	$ 87,440
Carrying Value
Assets
Mortgage loans	22,670	22,508
Policy loans	1,651	1,331
Other invested assets	256	257
Premiums, reinsurance and other receivables	8,188	7,577
Liabilities
Policyholder account balances	31,973	31,471
Long-term debt	3,155	3,156
Other liabilities	1,550	1,142
Separate account liabilities	1,245	1,150
Estimated Fair Value
Assets
Mortgage loans	20,546	20,609
Policy loans	1,764	1,455
Other invested assets	256	257
Premiums, reinsurance and other receivables	8,378	7,724
Liabilities
Policyholder account balances	31,377	30,606
Long-term debt	2,775	2,769
Other liabilities	1,550	1,142
Separate account liabilities	1,245	1,150
Estimated Fair Value | Level 1
Assets
Mortgage loans	0	0
Policy loans	0	0
Other invested assets	0	0
Premiums, reinsurance and other receivables	0	0
Liabilities
Policyholder account balances	0	0
Long-term debt	0	0
Other liabilities	0	0
Separate account liabilities	0	0
Estimated Fair Value | Level 2
Assets
Mortgage loans	0	0
Policy loans	834	518
Other invested assets	245	245
Premiums, reinsurance and other receivables	132	88
Liabilities
Policyholder account balances	0	0
Long-term debt	2,775	2,769
Other liabilities	874	463
Separate account liabilities	1,245	1,150
Estimated Fair Value | Level 3
Assets
Mortgage loans	20,546	20,609
Policy loans	930	937
Other invested assets	11	12
Premiums, reinsurance and other receivables	8,246	7,636
Liabilities
Policyholder account balances	31,377	30,606
Long-term debt	0	0
Other liabilities	676	679
Separate account liabilities	$ 0	$ 0

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Total amount of mortgage loans not valued on a recurring basis as of the balance sheet date.

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Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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