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Supplemental Cash Flow Information (Tables)
 3 Months Ended
Mar. 31, 2018
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information [Table Text Block]
Supplemental Cash Flow Information
 
Three Months Ended March 31,
(In millions)
2018
 
2017
Net cash (used in) operating activities:
 
 
 
Interest paid (net of amounts capitalized)
$
(52
)
 
$
(64
)
Income taxes paid to taxing authorities
(231
)
 
(15
)
Noncash investing activities, related to continuing operations:
 

 
 

Increase (decrease) in asset retirement costs
$
4

 
$
4

Asset retirement obligations assumed by buyer
1

 
—


Other noncash investing activities include accrued capital expenditures as of March 31, 2018 and 2017 of $279 million and $231 million, respectively.