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Derivative Financial Instruments - Fair Value of Derivatives (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
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Derivatives, fair value disclosures |  |
Derivative instruments, assets | $ 337.8 | $ 463.5
Derivative instruments, liabilities | 350.1 | 654.0
Fair value of embedded derivative liabilities reported with contractholder funds | 177.1 | 467.8
Derivatives designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 21.8 | 21.1
Derivative instruments, liabilities | 63.9 | 72.5
Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 316.0 | 442.4
Derivative instruments, liabilities | 286.2 | 581.5
Interest rate contracts | Derivatives designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, liabilities | 21.6 | 27.8
Interest rate contracts | Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 215.2 | 339.3
Derivative instruments, liabilities | 23.5 | 33.0
Foreign exchange contracts | Derivatives designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 21.8 | 21.1
Derivative instruments, liabilities | 42.3 | 44.7
Foreign exchange contracts | Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 64.4 | 66.5
Derivative instruments, liabilities | 15.9 | 29.2
Equity contracts | Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 33.3 | 33.2
Derivative instruments, liabilities | 66.8 | 49.0
Credit contracts | Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, assets | 3.1 | 3.4
Derivative instruments, liabilities | 2.9 | 2.5
Other contracts | Derivatives not designated as hedging instruments |  |
Derivatives, fair value disclosures |  |
Derivative instruments, liabilities | $ 177.1 | $ 467.8

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- Definition This item represents the fair value of embedded derivatives that have been bifurcated from an investment host contract or universal life contract. + References No definition available. + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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