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COMMITMENTS AND CONTINGENT LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Environmental Loss Contingency Disclosure
The following table summarizes the activity in the Corporation's accrued obligations for environmental matters for the years ended December 31, 2019 and 2018:

Accrued Liability for Environmental Matters
 
 
In millions
2019
2018
Balance at Jan 1
$
94

$
114

Accrual adjustment
93

38

Payments against reserve
(55
)
(57
)
Foreign currency impact

(1
)
Balance at Dec 31
$
132

$
94