Fair Value (Financial Instruments Carried at Other Than Fair Value) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Assets
Policy loans	$ 903	$ 898
Liabilities
Separate account liabilities	81,901	78,880	$ 82,622
Carrying Value
Assets
Mortgage loans	22,579	22,877
Policy loans	903	898
Other invested assets	231	341
Premiums, reinsurance and other receivables	7,013	5,915
Liabilities
Policyholder account balances	31,539	31,223
Short-term debt		125
Long-term debt	837	838
Other liabilities	1,157	1,009
Separate account liabilities	1,133	1,022
Estimated Fair Value
Assets
Mortgage loans	20,420	20,760
Policy loans	939	930
Other invested assets	231	341
Premiums, reinsurance and other receivables	7,149	6,065
Liabilities
Policyholder account balances	30,470	30,303
Short-term debt		125
Long-term debt	724	742
Other liabilities	1,157	1,009
Separate account liabilities	1,133	1,022
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
Short-term debt		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	465	477
Other invested assets	216	201
Premiums, reinsurance and other receivables	154	77
Liabilities
Policyholder account balances	0	0
Short-term debt		0
Long-term debt	27	28
Other liabilities	380	212
Separate account liabilities	1,133	1,022
Estimated Fair Value \| Level 3
Assets
Mortgage loans	20,420	20,760
Policy loans	474	453
Other invested assets	15	140
Premiums, reinsurance and other receivables	6,995	5,988
Liabilities
Policyholder account balances	30,470	30,303
Short-term debt		125
Long-term debt	697	714
Other liabilities	777	797
Separate account liabilities	$ 0	$ 0

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

No definition available.

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- Definition

Fair value portion of other investments not otherwise specified in the taxonomy.

+ References

No definition available.

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- Definition

Fair value portion of the liability of policyholders for deposits held under the terms of insurance contracts.

+ References

No definition available.

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- References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Fair value portion of other liabilities.

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- Definition

Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
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-Name Accounting Standards Codification
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- Definition

Amount of liability for variable contract in which all or portion of contract holder's funds is allocated to specific separate account and supported by assets held in separate account.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

No definition available.

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