Derivative Financial Instruments (Tables)

12 Months Ended

Mar. 31, 2014

Derivative Financial Instruments [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

Total gross notional amounts and fair values for currency derivatives with cash flow hedge accounting designation are as follows:

	As of March 31, 2014						As of March 31, 2013
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Asset		Liability				Asset		Liability
Option contracts to purchase	$	—	$	—	$	—	$	84	$	—	$	—
Forward contracts to purchase	179		—		3		—		—		—
Total	$	179	$	—	$	3	$	84	$	—	$	—
Option contracts to sell	$	—	$	—	$	—	$	149	$	6	$	—
Forward contracts to sell	363		—		2		—		—		—
Total	$	363	$	—	$	2	$	149	$	6	$	—

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

Total gross notional amounts and fair values for currency derivatives that are not designated as hedging instruments are accounted for as follows:

	As of March 31, 2014						As of March 31, 2013
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Asset		Liability				Asset		Liability
Forward contracts to purchase in exchange for USD	$	140	$	—	$	1	$	87	$	—	$	—
Total	$	140	$	—	$	1	$	87	$	—	$	—
Forward contracts to sell in exchange for USD	$	232	$	—	$	—	$	213	$	—	$	—
Forward contracts to sell in exchange for GBP	—		—		—		6		—		—
Total	$	232	$	—	$	—	$	219	$	—	$	—

The effect of foreign currency forward contracts not designated as hedging instruments in our Consolidated Statements of Operations for the fiscal years ended March 31, 2014, 2013 and 2012, was as follows (in millions):

	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
		Year Ended March 31,
		2014			2013			2012
Foreign currency forward contracts not designated as hedging instruments	Interest and other  income (expense), net	$	(5	)	$	(2	)	$	21