Fair Value (Financial Instruments Carried at Other Than Fair Value) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Assets
Policy loans	$ 8,874	$ 9,111
Liabilities
Collateral financing arrangement	716	766
Junior subordinated debt securities	3,158	3,156
Separate account liabilities	146,038	179,873
Carrying Value
Assets
Mortgage loans (1)	83,763	79,226
Policy loans	8,874	9,111
Other invested assets	946	1,025
Premiums, reinsurance and other receivables	2,905	2,262
Other assets	267	290
Liabilities
Policyholder account balances	125,039	123,865
Long-term debt	14,591	13,852
Collateral financing arrangement	716	766
Junior subordinated debt securities	3,158	3,156
Other liabilities	2,908	2,143
Separate account liabilities	81,976	95,619
Estimated Fair Value
Assets
Mortgage loans (1)	78,694	82,788
Policy loans	9,682	10,751
Other invested assets	946	1,025
Premiums, reinsurance and other receivables	2,963	2,454
Other assets	265	291
Liabilities
Policyholder account balances	118,694	127,728
Long-term debt	14,241	16,621
Collateral financing arrangement	591	630
Junior subordinated debt securities	3,502	4,447
Other liabilities	3,170	2,835
Separate account liabilities	81,976	95,619
Estimated Fair Value \| Level 1
Assets
Mortgage loans (1)	0	0
Policy loans	0	0
Other invested assets	0	0
Premiums, reinsurance and other receivables	0	0
Other assets	0	0
Liabilities
Policyholder account balances	0	0
Long-term debt	0	0
Collateral financing arrangement	0	0
Junior subordinated debt securities	0	0
Other liabilities	0	0
Separate account liabilities	0	0
Estimated Fair Value \| Level 2
Assets
Mortgage loans (1)	0	0
Policy loans	0	0
Other invested assets	729	769
Premiums, reinsurance and other receivables	1,042	492
Other assets	90	101
Liabilities
Policyholder account balances	0	0
Long-term debt	14,241	16,621
Collateral financing arrangement	0	0
Junior subordinated debt securities	3,502	4,447
Other liabilities	1,377	514
Separate account liabilities	81,976	95,619
Estimated Fair Value \| Level 3
Assets
Mortgage loans (1)	78,694	82,788
Policy loans	9,682	10,751
Other invested assets	217	256
Premiums, reinsurance and other receivables	1,921	1,962
Other assets	175	190
Liabilities
Policyholder account balances	118,694	127,728
Long-term debt	0	0
Collateral financing arrangement	591	630
Junior subordinated debt securities	0	0
Other liabilities	1,793	2,321
Separate account liabilities	$ 0	$ 0

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

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

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

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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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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Fair value portion of other assets.

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Fair value portion of other liabilities.

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

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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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.

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