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Debt (Debt Redemption Narrative) (Details) - USD ($) | 9 Months Ended |
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Sep. 30, 2022 | Dec. 31, 2021
Debt Disclosure [Abstract] |  |
Debt Instrument, Redemption, Description | On September 15, 2022, RGA announced a cash tender offer for any and all of its outstanding 6.20% Fixed-to-Floating Rate Subordinated Debentures due 2042 (the “2042 Debentures”) at a price of $25.20 for each $25 principal amount of the 2042 Debentures. The tender offer expired on September 22, 2022, and a total of $151 million, or approximately 38%, of the aggregate principal amount of the 2042 Debentures were tendered. The Company intends to redeem the remaining debentures in accordance with the indenture governing the 2042 Debentures. |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 38.00% |
Debt Instrument, Repurchase Amount | $ 151,000,000 |
Debt Instrument Redemption Principal Amount | 25 |
Debt Instrument Redemption Price | 25.20 |
Repayments of Accounts Receivable Securitization | 185,000,000 |
Other Notes Payable | 900,000,000 | $ 500,000,000
Collateralized Financings | $ 850,000,000 |

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- Definition Debt Instrument Redemption Price Offered for each of the 2042 Debentures. + References No definition available. + Details
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- Definition Debt Instrument Redemption Principal Amount of the 2042 Debentures + References No definition available. + Details
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- Definition The value of the collateral (typically cash) that the entity receives in a financing transaction in exchange for securities lent. This item represents a liability in the financial statements of the lender of the securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 25 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=109249708&loc=d3e113275-111724 + Details
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- Definition Description of debt redemption features under terms of the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details
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- Definition Percentage of principal amount of debt redeemed. + References No definition available. + Details
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- Definition Amount of long-term notes payable classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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- Definition Repayments of securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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