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Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Other Income and Expenses [Abstract] |  |  |
Employee related costs (1) | $ 3,520 | $ 3,515 | $ 3,514
Third party staffing costs | 1,573 | 1,423 | 1,335
General and administrative expenses | 700 | 686 | 761
Pension, postretirement and postemployment benefit costs | 98 | 147 | 165
Premium taxes, other taxes, and licenses & fees | 608 | 629 | 764
Commissions and other variable expenses | 5,265 | 5,463 | 5,596
Capitalization of DAC | (2,558) | (2,718) | (3,013)
Amortization of DAC and VOBA | 1,931 | 2,555 | 3,160
Amortization of negative VOBA | (41) | (34) | (45)
Interest expense on debt | 938 | 920 | 913
Total other expenses | 12,034 | 12,586 | 13,150
Net change in cash surrender value of investments, net of premiums paid | $ 93 | $ (144) | $ (147)

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