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Employee Stock Options Outstanding (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Jun. 30, 2011
Year
Entity
Shares  
Balance, beginning of year 187
Exercised (79)
Canceled (15)
Balance, end of year 93
Exercisable, end of year 92
Weighted Average Exercise Price  
Balance, beginning of year $ 24.68
Exercised $ 24.91
Canceled $ 28.84
Balance, end of year $ 23.21
Exercisable, end of year $ 23.16
Weighted Average Remaining Contractual Term (Years)  
Balance, end of year 1.04
Exercisable, end of year 1.04
Aggregate Intrinsic Value  
Balance, end of year $ 312
Exercisable, end of year $ 309