Financing Arrangement (Tables)

3 Months Ended

Jun. 30, 2012

Debt Instruments [Abstract]

Carrying Values Of Liability And Equity Components Of Notes

	As of June 30, 2012			As of March 31, 2012
Principal amount of Notes	$	633		$	633
Unamortized discount of the liability component	(89		)	(94		)
Net carrying amount of Notes	$	544		$	539
Equity component, net	$	105		$	105

Schedule Of Interest Expense Related To Notes

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