Financing Arrangement (Tables)

9 Months Ended

Dec. 31, 2011

Financing Arrangement [Abstract]

Carrying Values Of Liability And Equity Components Of Notes

	As of December 31, 2011
Principal amount of Notes	$	633
Unamortized discount of the liability component		(99	)
Net carrying amount of Notes	$	534
Equity component, net	$	105

Schedule Of Interest Expense Related To Notes

		Three Months		Nine Months
		Ended		Ended
		December 31,		December 31,
		2011		2011
Amortization of debt discount	$	5	$	9
Amortization of debt issuance costs		-		1
Coupon interest expense		1		2
Total interest expense related to Notes	$	6	$	12