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v3.23.2

Policyholders' account balances (Policyholder Account Balance Rollforward) (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Policyholder Account Balance [Line Items] |  |  |
Policyholder Account Balance, Beginning Balance |  | $ 3,140 | $ 2,766
Policyholder Account Balance, Premium Received |  | 228 | 253
Policyholder Account Balance, Policy Charge | [1] | (94) | (97)
Policyholder Account Balance, Surrender and Withdrawal |  | (76) | (72)
Policyholder Account Balance, Benefit Payment |  | (26) | (14)
Policyholder Account Balance, Interest Expense |  | 37 | 38
Policyholder Account Balance, Increase (Decrease) from Other Change |  | 6 | 125
Policyholder Account Balance, Ending Balance |  | 3,215 | 2,749
Universal Life |  |  |
Policyholder Account Balance [Line Items] |  |  |
Policyholder Account Balance, Beginning Balance |  | 1,719 | 1,612
Policyholder Account Balance, Premium Received |  | 175 | 195
Policyholder Account Balance, Policy Charge | [1] | (89) | (92)
Policyholder Account Balance, Surrender and Withdrawal |  | (41) | (37)
Policyholder Account Balance, Benefit Payment |  | (4) | (3)
Policyholder Account Balance, Interest Expense |  | 22 | 20
Policyholder Account Balance, Increase (Decrease) from Other Change |  | 19 | 36
Policyholder Account Balance, Ending Balance |  | $ 1,801 | $ 1,659
Policyholder Account Balance, Weighted Average Crediting Rate |  | 3.80% | 3.50%
Policyholder Account Balance, Net Amount at Risk | [2] | $ 10,405 | $ 10,041
Policyholder Account Balance, Cash Surrender Value |  | 978 | 876
Insurance, Other |  |  |
Policyholder Account Balance [Line Items] |  |  |
Policyholder Account Balance, Beginning Balance |  | 1,421 | 1,154
Policyholder Account Balance, Premium Received |  | 53 | 58
Policyholder Account Balance, Policy Charge | [1] | (5) | (5)
Policyholder Account Balance, Surrender and Withdrawal |  | (35) | (35)
Policyholder Account Balance, Benefit Payment |  | (22) | (11)
Policyholder Account Balance, Interest Expense |  | 15 | 18
Policyholder Account Balance, Increase (Decrease) from Other Change |  | (13) | 89
Policyholder Account Balance, Ending Balance |  | $ 1,414 | $ 1,090
Policyholder Account Balance, Weighted Average Crediting Rate |  | 2.20% | 3.10%
Policyholder Account Balance, Net Amount at Risk | [2] | $ 1,447 | $ 507
Policyholder Account Balance, Cash Surrender Value |  | $ 1,122 | $ 831
[1] | Contracts included in the policyholder account balances are generally charged a premium and/or monthly assessments on the basis of the account balance
[2] | For those guarantees of benefits that are payable in the event of death, the net amount at risk is defined as the current guaranteed minimum death benefit in excess of the current account balance at the balance sheet date.

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- Definition Amount of cash to be paid to policyholder upon termination and surrender of long-duration contract issued by insurance entity. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
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- Definition Amount of cash outflow to policyholder account balance from benefit payment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13J -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-13J Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
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