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Net Interest and Other Financial Costs (Tables)
 9 Months Ended
Sep. 30, 2019
Other Income and Expenses [Abstract]  
Net Interest And Other Financial Income (Costs)
Net interest and other financial costs were as follows:
 
Three Months Ended 
September 30,
 
Nine Months Ended 
September 30,
(In millions)
2019
 
2018
 
2019
 
2018
Interest income
$
(12
)
 
$
(26
)
 
$
(30
)
 
$
(71
)
Interest expense
352

 
233

 
1,042

 
675

Interest capitalized
(45
)
 
(21
)
 
(112
)
 
(55
)
Pension and other postretirement non-service costs(a)
6

 
45

 
6

 
47

Loss on extinguishment of debt
—

 
—

 
—

 
4

Other financial costs
16

 
9

 
39

 
18

Net interest and other financial costs
$
317

 
$
240

 
$
945

 
$
618


(a) 
See Note 21.