Segments Information Regarding Operations by Geographic Area (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Parent	$ 57.6	$ 29.4	$ 174.9	$ 172.9
Revenue, Net	555.2	548.0	1,687.3	1,705.3
Other Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net		76.9	245.2	247.9
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue, Net	204.4	196.3	622.4	630.3
Americas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	208.3	209.4	612.1	615.5
Americas [Member] | UNITED STATES [Member]
Segment Reporting Information [Line Items]
Revenue, Net	171.3	173.6	502.3	500.5
Americas [Member] | Other Americas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	37.0	35.8	109.8	115.0
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net	142.5	142.3	452.8	459.5
Asia Pacific [Member] | JAPAN [Member]
Segment Reporting Information [Line Items]
Revenue, Net	61.9	65.4	207.6	211.6
Asia Pacific [Member] | Other Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 80.6