Trade Accounts Receivable (Tables)

6 Months Ended

Sep. 30, 2013

Receivables [Abstract]

Components of trade accounts receivable, net

The components of “Trade accounts receivable, net” were as follows:

	September 30, 2013			March 31, 2013
	(in millions)
Accounts receivable – billed	$	523		$	796
Accounts receivable – unbilled	67			63
Other receivables	19			21
Less: Allowances	(21		)	(24		)
Trade accounts receivable, net	$	588		$	856