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Supplemental Information To Statements Of Cash Flows (Tables)
 12 Months Ended
Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract]  
Schedule Of Supplemental Information To Statements Of Cash Flows

 

 

 

Year Ended December 31,

 

 

 

2016

 

 

2015

 

 

2014

 

 

 

(Millions)

 

Net change in working capital accounts, net of

   assets and liabilities assumed:

 

 

 

 

 

 

 

 

 

 

 

 

Accounts receivable

 

$

(176

)

 

$

942

 

 

$

128

 

Income taxes receivable

 

 

130

 

 

 

384

 

 

 

(467

)

Other current assets

 

 

215

 

 

 

(57

)

 

 

(222

)

Accounts payable

 

 

(167

)

 

 

(190

)

 

 

(68

)

Revenues and royalties payable

 

 

96

 

 

 

(526

)

 

 

133

 

Other current liabilities

 

 

(106

)

 

 

(864

)

 

 

546

 

Net change in working capital

 

$

(8

)

 

$

(311

)

 

$

50

 

Interest paid (net of capitalized interest)

 

$

566

 

 

$

494

 

 

$

514

 

Income taxes paid (received)

 

$

(159

)

 

$

(279

)

 

$

899