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Other long-term liabilities (Tables)
 12 Months Ended
Dec. 31, 2018
OTHER LONG-TERM LIABILITIES.  
Schedule of other long-term liabilities

                                                                                                                                                                                                                   

($ millions)

 

December 31
2018

 

December 31
2017

 

Pensions and other post-retirement benefits (note 21)

 

1 420

 

1 369

 

Share-based compensation plans (note 24)

 
259

 
361

 

Partnership liability (note 35)

 
470

 
483

 

Deferred revenue

 
46

 
49

 

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

 
83

 
77

 

Other

 
68

 
73

 

 

 

2 346

 

2 412

 

 

   

(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, 2018, the carrying amount of the Libya EPSAs signature bonus was $85 million (December 31, 2017 – $79 million). The current portion is $2 million (December 31, 2017 – $2 million) and is recorded in Accounts Payable and Accrued Liabilities.