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Goodwill and Other Assets Goodwill and Other Assets (Textuals) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of Reporting Units		3
Goodwill, Impairment Loss	$ 0.0		$ 180.2
Divestitures		$ (4.3)
Transferred to assets held for sale		(11.7)	(44.5)
Amortization expense on capitalized software		30.6	33.7	$ 34.6
Amortization of Intangible Assets		143.9	153.4	$ 159.3
Americas Banking Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss			0.0
Divestitures		0.0
Transferred to assets held for sale		$ 0.0	(0.3)
EMEA Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	40.00%	40.00%
Eurasia Banking Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss			123.0
Divestitures		$ (0.4)
Transferred to assets held for sale		$ (11.7)	$ (0.8)