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Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2017
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Table
The following summarizes cash paid (received) for interest and income taxes, as well as non-cash investing and financing activities, for the years ended December 31:
millions
2017
 
2016
 
2015
Cash paid (received)
 
 
 
 
 
Interest, net of amounts capitalized (1)
$
906

 
$
856

 
$
2,019

Income taxes, net of refunds (2)
64

 
(882
)
 
26

Non-cash investing activities
 
 
 
 
 
Fair value of properties and equipment acquired
$
640

 
$
3

 
$
178

Asset retirement cost additions
66

 
298

 
273

Accruals of property, plant, and equipment
824

 
549

 
754

Net liabilities assumed (divested) in acquisitions and divestitures
(158
)
 
723

 
(114
)
Property insurance receivable
—

 
—

 
49

Acquisition receivable
—

 
(32
)
 
—

Non-cash investing and financing activities
 
 
 
 
 
Acquisition contingent consideration
$
—

 
$
103

 
$
—

Capital lease obligation (3)
(2
)
 
10

 
—

FPSO construction period obligation (3)
—

 
11

 
59

Deferred drilling lease liability
14

 
30

 
—


__________________________________________________________________
(1) 
Includes $1.2 billion of interest related to the Tronox settlement payment in 2015.
(2) 
Includes $881 million from a tax refund in 2016 related to the income tax benefit associated with the Company’s 2015 tax net operating loss carryback.
(3) 
Upon completion of the FPSO in the third quarter of 2016, the Company reported the construction period obligation as a capital lease obligation based on the fair value of the FPSO. See Note 12—Debt and Interest Expense.