COMMITMENTS AND CONTINGENT LIABILITIES

12 Months Ended

Dec. 31, 2020

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, 2020 and 2019:

Accrued Liability for Environmental Matters
In millions	2020		2019
Balance at Jan 1	$	132	$	94
Accrual adjustment	49		93
Payments against reserve	(47)		(55)
Foreign currency impact	(1)		—
Balance at Dec 31	$	133	$	132