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Leases
 12 Months Ended
Dec. 31, 2022
Disclosure of leases [Abstract]  
Leases Leases
LEASE ASSETS
Product transportation
and storage
Field equipment
and power
Offshore vessels
and equipment
Office leases
and other
Total
At December 31, 2020$1,038 $379 $128 $100 $1,645 
Additions48 36 — 4 88 
Depreciation(110)(57)(27)(22)(216)
Foreign exchange and other(2)(4)(2)(1)(9)
At December 31, 2021974 354 99 81 1,508 
Additions
44 110 28 — 182 
Depreciation
(106)(86)(31)(21)(244)
Foreign exchange and other
— (1)1 1 1 
At December 31, 2022$912 $377 $97 $61 $1,447 
LEASE ASSETS, BY SEGMENT
As at December 31, 2022 and 2021, the Company had the following lease assets by segment:
 
20222021
Exploration and Production
 
North America
$277 $308 
North Sea1 1 
Offshore Africa98 101 
Oil Sands Mining and Upgrading
1,015 1,027 
Head Office
56 71 
 
$1,447 $1,508 
LEASE LIABILITIES
The Company measures its lease liabilities at the discounted value of its lease payments during the lease term. Lease liabilities at December 31, 2022 and 2021, were as follows:
 
20222021
Lease liabilities
$1,540 $1,584 
Less: current portion
244 185 
 
$1,296 $1,399 
In addition to the lease assets disclosed above, on an ongoing basis the Company enters into short-term leases related to its Exploration and Production and Oil Sands Mining and Upgrading activities.
Other amounts included in net earnings and cash flows during 2022 and 2021 are provided below:
20222021
Expenses relating to short-term leases (1)
$410 $450 
Interest expense on lease liabilities
$60 $62 
Variable lease payments not included in the measurement of lease liabilities
$49 $65 
Total cash outflows for leases (2)
$1,204 $1,089 
(1)During 2022, the Company capitalized $453 million (2021 - $303 million) of short-term leases as additions to property, plant and equipment.
(2)Comprised of cash outflows relating to lease liabilities, short-term leases, and variable lease payments.