Accounts Receivable-Net (Tables)

12 Months Ended

Sep. 30, 2013

Accounts Receivable-Net

Schedule of net accounts receivable

	Fiscal Year Ended
	September 30, 2013			September 30, 2012
	(in millions)
Billed	$	1,177.6		$	1,207.0
Unbilled		1,076.8			1,145.1
Contract retentions		174.3			156.6
Total accounts receivable—gross		2,428.7			2,508.7
Allowance for doubtful accounts		(86.4	)		(112.8	)
Total accounts receivable—net	$	2,342.3		$	2,395.9