Related Party Transactions - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2013
Related Party Transaction
Gain on sale of shares	$ 242
Vantiv Holding, LLC
Related Party Transaction
Equity Method Investment, Ownership Percentage	28.00%
Percentage Of Vantiv Holding, LLC sold	5.00%
Equity investments, carrying value	$ 448
Vantiv Holding, LLC \| Class B Units
Related Party Transaction
Units of Vantiv Holding LLC Held	53,800,000
Vantiv Holding, LLC \| Class C Units
Related Party Transaction
Units of Vantiv Holding LLC Held	20,400,000
Vantiv, Inc. \| Class B Units
Related Party Transaction
Voting power in Vantiv	18.50%
Shares Held Vantiv Inc	53,800,000

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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