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Supplemental Cash Flow Information
9 Months Ended
Sep. 30, 2018
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
(8) Supplemental Cash Flow Information

Cash flows related to income taxes, interest, construction in process and dividends were as follows:
 
Nine Months Ended
September 30,
(In millions)
2018
 
2017
Supplemental disclosures:
 
Cash paid for income taxes, net of refunds
$
13

 
$
10

Cash paid for interest
55

 
56

Non-cash investing and financing activities:
 
 
 
Construction in progress additions included in accounts payable
$
10

 
$
8

Change in accounts payable related to construction in progress additions
2

 
9

Landlord incentives for leasehold improvements

 
1