Financing Arrangement (Tables)

3 Months Ended

Jun. 30, 2013

Debt Instruments [Abstract]

Carrying Values Of Liability And Equity Components Of Notes

The carrying values of the liability and equity components of the Notes are reflected in our Condensed Consolidated Balance Sheet as follows (in millions):

	As of June 30, 2013			As of March 31, 2013
Principal amount of Notes	$	633		$	633
Unamortized discount of the liability component	(69		)	(74		)
Net carrying amount of Notes	$	564		$	559
Equity component, net	$	105		$	105

Schedule Of Interest Expense

The following table summarizes our interest expense recognized for the three months ended June 30, 2013 and 2012 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions):

	Three Months Ended June 30,
	2013		2012
Amortization of debt discount	$	5	$	5
Amortization of debt issuance costs	1		1
Coupon interest expense	1		1
Total interest expense	$	7	$	7