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Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2019
Supplemental Cash Flow Elements [Abstract]  
Schedule of supplemental cash flow information
Supplemental cash flow information consisted of the following:
 
Six Months Ended
June 30,
(In millions)
2019
 
2018
Interest paid
$
111

 
$
84

Income taxes paid
80

 
121

Treasury stock purchases settled after the balance sheet date
—

 
12