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Segment Information Segment Information (Property and Equipment, net by Geographic Region) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Geographic Areas, Long-Lived Assets [Abstract]      
Property and Equipment, net, United States $ 1,425 $ 1,398 $ 1,355
Property and Equipment, net, International 126 114 114
Property and equipment, net $ 1,551 $ 1,512 $ 1,469