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Components of Property and Equipment (Detail) (USD $)
In Millions
Jun. 30, 2011
Jun. 30, 2010
Property, Plant and Equipment [Line Items]    
Land $ 533 $ 526
Buildings and improvements 6,521 6,087
Leasehold improvements 2,345 2,100
Computer equipment and software 6,601 5,673
Furniture and equipment 1,991 1,873
Total, at cost 17,991 16,259
Accumulated depreciation (9,829) (8,629)
Total, net $ 8,162 $ 7,630