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Other Current Assets (Tables)
12 Months Ended
Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Current Assets
The following table provides the breakdown of Other current assets as at December 31, 2021 and 2020:
In millionsDecember 31,20212020
Assets held for sale (Note 5)
$260 $90 
Prepaid expenses142 148 
Income taxes receivable 85 
Other20 42 
Total other current assets$422 $365