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Property and Equipment, Net of Accumulated Depreciation (Tables)
6 Months Ended
Nov. 30, 2012
Property, Plant and Equipment [Abstract]  
Components of property and equipment, at cost
The components of property and equipment, at cost, consisted of the following:
In millions
November 30, 2012
 
May 31, 2012
Land and improvements
$
7.3

 
$
7.0

Buildings and improvements
98.1

 
96.8

Data processing equipment
171.5

 
212.3

Software
272.5

 
263.5

Furniture, fixtures, and equipment
152.6

 
154.2

Leasehold improvements
96.1

 
96.0

Construction in progress
41.5

 
28.2

Total property and equipment, gross
839.6

 
858.0

Less: Accumulated depreciation and amortization
487.8

 
533.7

Property and equipment, net of accumulated depreciation
$
351.8

 
$
324.3