Segments Information Regarding Operations by Geographic Area (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Parent	$ 61.7	$ 64.6	$ 117.3	$ 143.5
Revenue, Net	561.7	568.7	1,132.1	1,157.3
Other Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net		90.7	164.6	171.0
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue, Net	201.8	209.6	418.0	434.0
Americas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	201.6	198.5	403.8	406.1
Americas [Member] | UNITED STATES [Member]
Segment Reporting Information [Line Items]
Revenue, Net	164.6	160.9	331.0	326.9
Americas [Member] | Other Americas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	37.0	37.6	72.8	79.2
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net	158.3	160.6	310.3	317.2
Asia Pacific [Member] | JAPAN [Member]
Segment Reporting Information [Line Items]
Revenue, Net	68.9	69.9	145.7	146.2
Asia Pacific [Member] | Other Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 89.4