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Supplemental Cash Flow and Other Information (Tables)
 3 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information
Our supplemental cash flow information is as follows:
Supplemental Cash Flow Information
(in millions)
Quarter Ended 
 December 31,
2018

2017
Cash paid for interest
$
104

 
$
123

Cash paid for income taxes
$
36

 
$
24