Commitments and Contingencies (Details)	Jun. 30, 2016 USD ($)
Minimum
Commitments and contingencies
Possible losses in excess of any amounts accrued	$ 0
Minimum | Patent infringement
Commitments and contingencies
Possible losses in excess of any amounts accrued	0
Minimum | Merchant customer matters
Commitments and contingencies
Possible losses in excess of any amounts accrued	0
Minimum | Other matters
Commitments and contingencies
Possible losses in excess of any amounts accrued	0
Maximum
Commitments and contingencies
Possible losses in excess of any amounts accrued	80,000,000
Maximum | Patent infringement
Commitments and contingencies
Possible losses in excess of any amounts accrued	10,000,000
Maximum | Merchant customer matters
Commitments and contingencies
Possible losses in excess of any amounts accrued	40,000,000
Maximum | Other matters
Commitments and contingencies
Possible losses in excess of any amounts accrued	$ 30,000,000