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INTEREST AND OTHER FINANCING EXPENSE (Tables)
 12 Months Ended
Dec. 31, 2017
Borrowing costs [abstract]  
Disclosure of interest and other financing expense
 
 
2017

 
2016

 
2015

Interest and other financing expense:
 
 
 
 
 
 
Long-term debt
 
$
810

 
$
664

 
$
618

Other (1)
 
—

 
—

 
1

 
 
810

 
664

 
619

Less: amounts capitalized on qualifying assets
 
82

 
233

 
244

Total interest and other financing expense
 
728

 
431

 
375

Total interest income
 
(97
)
 
(48
)
 
(53
)
Net interest and other financing expense
 
$
631

 
$
383

 
$
322

(1)
Includes the fair value impact of interest rate swaps on US dollar debt securities.