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Equity Based Compensation - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total compensation costs related to unvested awards not yet recognized for all plans presented $ 50    
Tax benefit recognized on vested restricted stock units and stock options 8 10 3
Granted 2,924,000 1,414,000 2,189,000
Stock based compensation award, vested 24,000 [1] 869,000 [1] 991,000 [1]
Options granted 0    
Performance Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (years) 3 years    
Granted 4,300,000 1,700,000 1,800,000
Performance Stock Units [Member] | Settled in Stock [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted 2,700,000 1,200,000 1,200,000
Restricted Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (years) 3 years    
Granted 200,000 200,000 1,000,000
Restricted Stock Units [Member] | Settled in Cash [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock based compensation award, vested 0 266,000 395,000
Cash used to settle vested Restricted Stock Units in the period   $ 6 $ 6
Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average future expense period of unrecognized stock-based compensation expense (years) 1 year    
Minimum [Member] | Performance Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Payout range on stock based compensation awards related to PSUs 0.00%    
Minimum [Member] | Restricted Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (years) 3 years    
Percentage of annualized base salary received in shares 0.00%    
Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average future expense period of unrecognized stock-based compensation expense (years) 2 years    
Maximum [Member] | Performance Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Payout range on stock based compensation awards related to PSUs 200.00%    
Maximum [Member] | Restricted Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (years) 4 years    
Percentage of annualized base salary received in shares 100.00%    
2013 LTIP [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award shares authorized 30,000,000    
[1] The fair value of RSUs held by the Company's employees that vested during the fiscal years ended June 30, 2014, 2013 and 2012 was nil, $20 million and $16 million, respectively.