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Investments - Balance Sheet Offsetting, Liabilities (Details) - Derivative liabilities - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
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Financial Liability Offsetting |  |
Gross amount of recognized liabilities subject to netting agreements | $ 178.7 | $ 186.2
Amount of assets that offset the gross amount of liabilities subject to netting agreements not offset in statement of financial position | (116.4) | (132.5)
Collateral pledged, financial liabilities | (55.0) | (45.7)
Net amount of liabilities subject to netting agreements | 7.3 | 8.0
Gross amount of liabilities not subject to netting agreements | $ 281.6 | $ 467.8

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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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