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Change in Accounting Principles (Tables)
6 Months Ended
Jun. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

 

Millions of Dollars

 

 

December 31

 

ASU No. 2018-02

 

January 1

 

 

2018

 

Adjustments

 

2019

Equity

 

 

 

 

 

 

Accumulated other comprehensive loss

$

(6,063)

 

(40)

 

(6,103)

Retained earnings

 

34,010

 

40

 

34,050

For additional information regarding the impact of the adoption of ASU No. 2018-02, see Note 16—Accumulated Other Comprehensive Loss.