Trade and Installment Accounts Receivable

6 Months Ended

Sep. 30, 2011

Trade and Installment Accounts Receivable [Abstract]

TRADE AND INSTALLMENT ACCOUNTS RECEIVABLE

NOTE F — TRADE ACCOUNTS RECEIVABLE

Trade accounts receivable, net represents amounts due from the Company’s customers and is presented net of allowance for doubtful accounts. These balances include revenue recognized in advance of customer billings but do not include unbilled contractual commitments executed under license agreements. The components of “Trade accounts receivable, net” were as follows:

	September 30,			March 31,
	2011			2011
	(in millions)
Accounts receivable — billed	$	510		$	758
Accounts receivable — unbilled		84			86
Other receivables		25			27
Less: Allowance for doubtful accounts		(18	)		(22	)
Trade accounts receivable, net	$	601		$	849