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Other long-term liabilities (Tables)
 12 Months Ended
Dec. 31, 2017
OTHER LONG-TERM LIABILITIES.  
Schedule of other long-term liabilities

                                                                                                                                                                                    

($ millions)

 

Dec 31
2017

 

Dec 31
2016

 

 

Pensions and other post-retirement benefits (note 24)

 

1 369

 

1 464

 

 

Share-based compensation plans (note 27)

 
361

 
364

 

 

Partnership liability (note 38)

 
483

 

—

 

 

Deferred revenue

 
49

 
55

 

 

Libya Exploration and Production Sharing Agreement (EPSA) signature bonus(1)

 
77

 
83

 

 

Other

 
73

 
131

 

 

Reclassified to assets held for sale (notes 36 and 37)

 

—

 
(30

)

 

 

 

2 412

 

2 067

 

 

 

 

 

 

(1)          

As part of the 2009 acquisition of Petro-Canada, the company assumed the remaining US$500 million obligation for a signature bonus relating to Petro-Canada's ratification of six EPSAs in Libya. At December 31, 2017, the carrying amount of the Libya EPSAs signature bonus was $79 million (December 31, 2016 – $85 million). The current portion is $2 million (December 31, 2016 – $2 million) and is recorded in Accounts Payable and Accrued Liabilities.