Goodwill and Other Intangible Assets (Details) In Millions, unless otherwise specified	3 Months Ended				2 Months Ended
Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Feb. 23, 2015 Cashboard [Member] Common Stock	Feb. 23, 2015 Common Stock Israel, New Shekels Cashboard [Member] ILS	Feb. 23, 2015 Common Stock United States of America, Dollars Cashboard [Member] USD ($)	Feb. 23, 2015 Cashboard [Member] USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)					56.20%
Payments to Acquire Businesses and Interest in Affiliates	$ 2.4	$ 32.2				9.5	$ 2.4
Assets	10,507.8us-gaap_Assets		10,455.7us-gaap_Assets					5.5
Goodwill	169.2us-gaap_Goodwill	23.8us-gaap_Goodwill	168.9us-gaap_Goodwill	0us-gaap_Goodwill				0.3
Intangible Assets, Net (Excluding Goodwill)	193.4	62.4	197.5	20.7				2.8
Liabilities	$ 5,968.0us-gaap_Liabilities		$ 5,917.3us-gaap_Liabilities					$ 1.2

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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