Derivative Financial Instruments Derivative Financial Instruments (Tables)

6 Months Ended

Sep. 30, 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 September 30, 2014				As of March 31, 2014
	Notional Amount		Fair Value		Notional Amount		Fair Value
			Asset	Liability			Asset	Liability
Forward contracts to purchase	$	121	—	5	$	179	—	3
Forward contracts to sell	$	246	11	—	$	363	—	2

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 September 30, 2014						As of March 31, 2014
	Notional Amount		Fair Value				Notional Amount		Fair Value
			Asset		Liability				Asset		Liability
Forward contracts to purchase	$	77	$	—	$	1	$	140	$	—	$	1
Forward contracts to sell	$	444	$	1	$	—	$	232	$	—	$	—

The effect of foreign currency forward contracts not designated as hedging instruments in our Condensed Consolidated Statements of Operations for the three and six months ended September 30, 2014 and 2013, was as follows (in millions):

	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
		Three Months Ended September 30,					Six Months Ended September 30,
		2014		2013			2014		2013
Foreign currency forward contracts not designated as hedging instruments	Interest and other income (expense), net	$	18	$	(5	)	$	19	$	(5	)