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ACCOUNTS RECEIVABLE (Tables)
 12 Months Ended
Dec. 31, 2019
Receivables [Abstract]  
Schedule of the components of Accounts Receivable, Net
The following table presents the components of Accounts Receivable, Net on the Consolidated Balance Sheets:
 
December 31,
(in millions)
2019
 
2018
Customer (1)
$
92

 
$
99

Customer, Unbilled
42

 
45

Due from Affiliates (Note 6)
8

 
8

Other
19

 
25

Allowance for Doubtful Accounts
(6
)
 
(5
)
Accounts Receivable, Net
$
155

 
$
172

(1) 
Includes $5 million and $8 million as of December 31, 2019 and 2018, respectively, of receivables related to revenue from derivative instruments.