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Other Income (Tables)
 12 Months Ended
Dec. 31, 2017
OTHER INCOME.  
Schedule of other income

                                                                                                                                                                                    

($ millions)

 
2017

 
2016

 

 

Energy trading activities

 

 

 

 

 

 

 

Unrealized (losses) recognized in earnings during the period

 
(37

)
(47

)

 

 

(Losses) gains on inventory valuation

 
(39

)
62

 

 

Risk management activities(1)

 
(19

)
(25

)

 

Investment and interest income

 
162

 
77

 

 

Risk mitigation and insurance proceeds(2)

 
76

 
41

 

 

Change in value of pipeline commitments and other

 
(18

)
53

 

 

 

 
125

 
161

 

 

 

 

 

 

(1)          

Includes fair value changes related to short-term derivative contracts in the Oil Sands and Refining and Marketing segments and long-term forward-starting interest rate swaps in the Corporate segment.

(2)          

2017 includes property damage insurance proceeds for Syncrude in the Oil Sands segment and 2016 includes property damage insurance proceeds for the Terra Nova asset in the Exploration and Production segment.