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PRODUCT WARRANTY (Tables)
9 Months Ended
Sep. 30, 2021
Product Warranties Disclosures [Abstract]  
Schedule of product warranty liability
The following table summarizes the activity in the product warranty accrual accounts:
(in millions)20212020
Beginning balance, January 1$253 $116 
Provisions for current period sales69 36 
Adjustments of prior estimates17 14 
Payments(90)(41)
Other, primarily translation adjustment(2)
Ending balance, September 30$247 $127 

The product warranty liability is classified in the Condensed Consolidated Balance Sheets as follows:
September 30,December 31,
(in millions)20212020
Other current liabilities$143 $164 
Other non-current liabilities104 89 
Total product warranty liability$247 $253