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COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Environmental Loss Contingency
The following table summarizes the activity in the Corporation's accrued obligations for environmental matters for the years ended December 31, 2021 and 2020:

Accrued Liability for Environmental Matters
In millions20212020
Balance at Jan 1$133 $132 
Accrual adjustment47 49 
Payments against reserve(31)(47)
Foreign currency impact(1)(1)
Balance at Dec 31$148 $133