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Supplemental Cash Flow Information
 6 Months Ended
Jun. 30, 2018
Supplemental Cash Flow Information [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION
12.
SUPPLEMENTAL CASH FLOW INFORMATION

In order to determine net cash provided by operating activities, net income is adjusted by, among other things, changes in current assets and current liabilities as follows (in millions):
 
Six Months Ended
June 30,
 
2018
 
2017
Decrease (increase) in current assets:
 
 
 
Receivables, net
$
(595
)
 
$
1,396

Inventories
(46
)
 
123

Prepaid expenses and other
(35
)
 
86

Increase (decrease) in current liabilities:
 
 
 
Accounts payable
661

 
(942
)
Accrued expenses
(83
)
 
262

Taxes other than income taxes payable
28

 
(41
)
Income taxes payable
(375
)
 
(25
)
Changes in current assets and current liabilities
$
(445
)
 
$
859



Cash flows related to interest and income taxes were as follows (in millions):
 
Six Months Ended
June 30,
 
2018
 
2017
Interest paid in excess of amount capitalized
$
248

 
$
235

Income taxes paid, net
817

 
263



There were no significant noncash investing and financing activities for the six months ended June 30, 2018. Noncash investing and financing activities during the six months ended June 30, 2017 included the recognition of capital lease assets and related obligations totaling approximately $490 million for the lease of storage tanks located at three of our refineries.