Subsequent Events - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Subsequent Event
Fifth Third Bank Common Stock Conversion Factor	2,159.8272
Common Stock Issued	35,511,740
Gain On Share Sale	$ 242
Preferred stock Series G
Subsequent Event
Preferred Stock Conversion Date	Jul. 01, 2013
Preferred stock, outstanding	16,442
Depository Shares	4,110,500
Subsequent events
Subsequent Event
Equity Method Investment, Ownership Percentage	25.00%
Subsequent events | Class A Common Shares
Subsequent Event
Vantiv Share Sale Pricing Date	Aug. 02, 2013
Vantiv Share Sale Settlement Date	Aug. 07, 2013
Vantiv Shares Priced	20,000,000
Vantiv Shares Sold	5,000,000
Subsequent events | Class B Units
Subsequent Event
Units of Vantiv Holding LLC Held	48,800,000
Shares Held Vantiv Inc	48,800,000
Voting power in Vantiv	18.50%
Subsequent events | Class C Units
Subsequent Event
Units of Vantiv Holding LLC Held	20,400,000
Subsequent events | Pre-tax gain
Subsequent Event
Gain On Share Sale	85
Subsequent events | After-tax gain
Subsequent Event
Gain On Share Sale	$ 55