Related Party (Summary of Vantiv Holding, LLC Sales Transactions) (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investment Summarized Financia lInformation
Worldpay Holding, LLC Carrying Value	$ 420	$ 219

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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