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Reinsurance (Reinsurance Amounts Recorded on Consolidated Statements of Income (Loss)) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reinsurance [Abstract] |  |  |
Direct insurance premiums and fee income | $ 14,154 | $ 13,304 | $ 13,498
Reinsurance assumed | 94 | 95 | 91
Reinsurance ceded | (1,744) | (1,656) | (1,579)
Total insurance premiums and fee income | 12,504 | 11,743 | 12,010
Direct insurance benefits | 10,714 | 10,630 | 9,574
Reinsurance recoveries netted against benefits | (2,185) | (1,953) | (1,694)
Benefits | $ 8,529 | $ 8,677 | $ 7,880

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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums written. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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