XML 26 R47.htm IDEA: XBRL DOCUMENT v3.2.0.727
Hedging Activities (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Mar. 31, 2015
Foreign exchange contract      
Derivative [Line Items]      
Description of foreign currency derivative activities   manage the impact of foreign currency fluctuation  
Foreign exchange contract | Designated as hedging instrument      
Derivative [Line Items]      
Derivative, notional amount $ 399   $ 399
Foreign exchange contract | Not designated as hedging instrument      
Derivative [Line Items]      
Derivative, notional amount 2,002   $ 1,755
Net losses from changes in fair value not designated for hedge accounting $ 45 $ 20  
Minimum      
Derivative [Line Items]      
Derivative, maturity date Mar. 31, 2016    
Minimum | Foreign exchange contract | Not designated as hedging instrument      
Derivative [Line Items]      
Maturity of foreign currency derivatives Jul. 31, 2015    
Maximum      
Derivative [Line Items]      
Derivative, maturity date Mar. 31, 2020    
Maximum | Foreign exchange contract | Not designated as hedging instrument      
Derivative [Line Items]      
Maturity of foreign currency derivatives Jun. 15, 2016