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Accounts Receivable - Net (Tables)
3 Months Ended
Dec. 31, 2017
Accounts Receivable - Net  
Schedule of net accounts receivable

 

 

 

December 31,
2017

 

September 30,
2017

 

 

 

(in millions)

 

Billed

 

$

2,511.6

 

$

2,317.8

 

Unbilled

 

2,254.5

 

2,293.5

 

Contract retentions

 

598.9

 

568.6

 

 

 

 

 

 

 

Total accounts receivable—gross

 

5,365.0

 

5,179.9

 

Allowance for doubtful accounts

 

(51.3

)

(52.2

)

 

 

 

 

 

 

Total accounts receivable—net

 

$

5,313.7

 

$

5,127.7