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Investments (Net Investment Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Net Investment Income [Line Items] |  |  |  |
Less: Investment expenses | $ 273 | $ 232 | $ 515 | $ 469
Net investment income | 3,583 | 5,280 | 7,867 | 10,594
Securities Investment |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 4,543 | 5,134 | 9,568 | 10,478
Net investment income | 4,270 | 4,902 | 9,053 | 10,009
Fixed maturity securities AFS |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 2,832 | 2,739 | 5,546 | 5,492
Equity Securities |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 5 | 9 | 12 | 20
FVO Securities |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Net investment income | (89) | 50 | (154) | 86
Mortgage loans |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 833 | 885 | 1,657 | 1,748
Policy loans |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 114 | 120 | 230 | 241
Real Estate and Real Estate Joint Ventures |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 379 | 205 | 707 | 381
Other limited partnership interests |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 168 | 1,047 | 1,094 | 2,329
Cash, cash equivalents and short-term investments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 49 | 24 | 80 | 49
Operating joint ventures |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 31 | 15 | 49 | 38
Other Investments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross Investment Income, Operating | 221 | 40 | 347 | 94
Unit-linked investments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Net investment income | $ (687) | $ 378 | $ (1,186) | $ 585

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- Definition Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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