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Settlement Assets and Obligations - Components of Investment Securities (Parenthetical) (Details) $ in Millions	Dec. 31, 2022 USD ($) Securities
Summary of Investment Holdings [Line Items]
Number of investment securities | Securities	432
Number of investment securities for less than twelve months | Securities	324
Number of investment securities for greater than twelve months | Securities	108
Unrealized loss position for greater than twelve months	$ 28.3
Unrealized loss position for less than twelve months	57.2
Total fair value loss position for less than twelve months	871.9
Total fair value loss position for greater than twelve months	$ 186.6

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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