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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of realized and unrealized gain (loss) on investment.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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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.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Related Party Transactions - Worldpay, Inc. and Worldpay Holding, LLC (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2019	Mar. 31, 2012	Jun. 30, 2009
Worldpay Holding, LLC
Related Party Transactions
Percentage of Vantiv Holding, LLC sold to Advent for cash and warrants				51.00%
Ownership percentage			39.00%	49.00%
Worldpay Holding, LLC \| Processing Services
Related Party Transactions
Service fee paid		$ 77
Worldpay Holding, LLC \| Beyond Deconversion Period
Related Party Transactions
Revenue from related parties		$ 87
Worldpay, Inc. \| Other noninterest income
Related Party Transactions
Recognized gain	$ 562