XML 145 R109.htm IDEA: XBRL DOCUMENT v3.22.4
Impairment Charges and Reversals - Forward Price Assumptions (Details)
BTU in Millions
 12 Months Ended
Dec. 31, 2022
$ / bbl
$ / bbl
$ / Mcf
BTU
Dec. 31, 2021
$ / bbl
$ / Mcf
$ / bbl
BTU
Dec. 31, 2020
$ / bbl
$ / bbl
$ / Mcf
BTU
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Gas Heating Value | BTU 1 1 1
West Texas Intermediate | 1 Year      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 80.33 72.83 47.17
West Texas Intermediate | 2 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 78.50 68.78 50.17
West Texas Intermediate | 3 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 76.95 66.76 53.17
West Texas Intermediate | 4 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 77.61 68.09 54.97
West Texas Intermediate | 5 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 79.16 69.45 56.07
West Texas Intermediate | Thereafter      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Forward price, average annual increase 2.00% 2.00% 2.00%
Western Canada Select | 1 Year      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 76.54 74.43 44.63
Western Canada Select | 2 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 77.75 69.17 48.18
Western Canada Select | 3 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 77.55 66.54 52.10
Western Canada Select | 4 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 80.07 67.87 54.10
Western Canada Select | 5 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 81.89 69.23 55.19
Western Canada Select | Thereafter      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Forward price, average annual increase 2.00% 2.00% 2.00%
Edmonton C5+ | 1 Year      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 106.22 91.85 59.24
Edmonton C5+ | 2 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 101.35 85.53 63.19
Edmonton C5+ | 3 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 98.94 82.98 67.34
Edmonton C5+ | 4 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 100.19 84.63 69.77
Edmonton C5+ | 5 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal 101.74 86.33 71.18
Edmonton C5+ | Thereafter      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Forward price, average annual increase 2.00% 2.00% 2.00%
Alberta Energy Company Natural Gas | 1 Year      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal | $ / Mcf 4.23 3.56 2.88
Alberta Energy Company Natural Gas | 2 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal | $ / Mcf 4.40 3.20 2.80
Alberta Energy Company Natural Gas | 3 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal | $ / Mcf 4.21 3.05 2.71
Alberta Energy Company Natural Gas | 4 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal | $ / Mcf 4.27 3.10 2.75
Alberta Energy Company Natural Gas | 5 Years      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Long-term Price Assumptions Used In Current Measurement Of Fair Value Less Costs Of Disposal | $ / Mcf 4.34 3.17 2.80
Alberta Energy Company Natural Gas | Thereafter      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Forward price, average annual increase 2.00% 2.00% 2.00%