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Divestitures and Acquisition - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 22, 2013
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Acquisition And Dispositions [Line Items]        
Acquisition, net of cash received     $ 119  
Pre-tax gain on acquisition     22  
Acquisition-related costs     2  
Selling, general and administrative expenses
       
Acquisition And Dispositions [Line Items]        
Spin-Off costs   3 9  
Morocco
       
Acquisition And Dispositions [Line Items]        
Acquisition, net of cash received 119      
Cash paid for acquisition 155      
Cash acquired 36      
Pre-tax gain on acquisition     22  
Acquisition-related costs     7  
Identifiable intangible assets acquired in business acquisition       48
Business acquisition, liabilities assumed and goodwill       209
Restructuring and related cost, expected cost   1    
Fiscal Year 2014
       
Acquisition And Dispositions [Line Items]        
Expected spin off cost   $ 30