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Other Income (Tables)
 12 Months Ended
Dec. 31, 2021
Other Income, Nonoperating [Abstract]  
Other income
The following table provides the breakdown of Other income for the years ended December 31, 2021, 2020 and 2019:
In millionsYear ended December 31,202120202019
Gain on disposal of land$23 $11 $50 
Other (1)
20 (5)3 
Total other income$43 $6 $53 
(1)Includes foreign exchange gains and losses related to foreign exchange forward contracts and the re-measurement of foreign currency denominated monetary assets and liabilities. See Note 22 – Financial instruments for additional information.