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Variable Interest Entities - Unconsolidated VIEs (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | $ 291,538.5 | $ 304,657.2
Money Market Funds |  |
Total assets of unconsolidated money market mutual funds | 5,600.0 | 4,800.0
Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Carrying value used if distributions received are in excess of investment | 0.0 | 0.0
Corporate debt securities | Available-for-sale | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 130.0 | 142.1
Maximum exposure to loss | 136.0 | 136.9
Residential mortgage-backed pass-through securities | Available-for-sale | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 1,905.4 | 3,152.9
Maximum exposure to loss | 1,978.3 | 3,122.3
Residential mortgage-backed pass-through securities | Trading | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 70.2 | 117.4
Maximum exposure to loss | 70.2 | 117.4
Commercial mortgage-backed securities | Available-for-sale | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 5,423.2 | 5,562.2
Maximum exposure to loss | 5,625.1 | 5,436.2
Commercial mortgage-backed securities | Trading | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 23.7 | 25.6
Maximum exposure to loss | 23.7 | 25.6
Collateralized debt obligations | Available-for-sale | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 3,888.6 | 3,559.6
Maximum exposure to loss | 3,919.3 | 3,564.7
Collateralized debt obligations | Trading | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 7.1 | 7.5
Maximum exposure to loss | 7.1 | 7.5
Other debt obligations | Available-for-sale | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 6,779.0 | 7,560.4
Maximum exposure to loss | 7,033.1 | 7,487.8
Other debt obligations | Trading | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 5.4 | 8.2
Maximum exposure to loss | 5.4 | 8.2
Equity securities | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 116.2 | 115.4
Maximum exposure to loss | 116.2 | 115.4
Other investments: Other limited partnership and fund interests | Variable Interest Entity |  |
Unconsolidated Variable Interest Entity disclosures |  |
Asset carrying value | 1,313.8 | 1,209.6
Maximum exposure to loss | 2,205.0 | 2,053.8
Fully secured debt of international real estate funds with recourse to the investment manager, included in maximum loss exposure | $ 127.6 | $ 130.5

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- Definition The carrying value used in the methodology for estimating the maximum exposure to loss of the reporting entity as a result of its involvement with the Variable Interest Entity (VIE), if distributions have been received in excess of our investment, resulting in a negative carrying value for the investment. + References No definition available. + Details
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- Definition The amount of debt of managed international rest estate funds that is fully secured by assets whose value exceeds the amount of the debt, but also includes recourse to the investment manager, included in the reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. 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