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Other Assets
 12 Months Ended
Dec. 31, 2022
Other Noncurrent Assets [Abstract]  
Other Assets
23. OTHER ASSETS
As at December 31,20222021
Intangible Assets (1)
1978
Private Equity Investments (Note 37)
5553
Other Equity Investments—77
Net Investment in Finance Leases6260
Long-Term Receivables and Prepaids
12077
Precious Metals8685
Other—1
342431
(1)    For the twelve months ended December 31, 2022, $49 million of previously capitalized intangible asset costs were written off as DD&A in the Oil Sands segment as the carrying value was not considered to be recoverable.
In December 2021, all of the outstanding share purchase warrants received in the sale of the Company's Marten Hills assets to Headwater were exercised for a total cost of $30 million. At December 31, 2021, the fair value of the Headwater investment was $77 million, included in other equity investments above. The investment was carried at FVTPL.
On June 8, 2022, the Company sold its investment in Headwater for proceeds of $110 million.