Goodwill and Other Intangible Assets (Details) ₪ in Millions, $ in Millions	2 Months Ended		6 Months Ended
	Feb. 23, 2015 ILS (₪)	Feb. 23, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates			$ 2.4	$ 32.2
Assets			10,429.3			$ 10,455.7
Goodwill			169.2	23.8	$ 169.2	168.9	$ 23.8	$ 0.0
Intangible Assets, Net (Excluding Goodwill)			186.4	$ 59.8	$ 193.4	197.5	$ 62.4	$ 20.7
Liabilities			$ 5,970.8			$ 5,917.3
Cashboard [Member] | Common Stock
Acquired Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)		56.20%	68.30%
Common Stock | Israel, New Shekels | Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates | ₪	₪ 9.5
Common Stock | United States of America, Dollars | Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates		$ 2.4
Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Assets		5.5
Goodwill		0.3
Intangible Assets, Net (Excluding Goodwill)		2.8
Liabilities		$ 1.2