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OTHER OPERATING EXPENSE, NET (Tables)
3 Months Ended
Mar. 31, 2021
Other Income and Expenses [Abstract]  
Schedule of other expense
Items included in Other operating expense, net consist of:
Three Months Ended March 31,
(in millions)20212020
Restructuring expense (Note 5)$30 $15 
Merger, acquisition and divestiture expense13 21 
Net gain on insurance recovery for property damage(2)— 
Other income, net(3)— 
Other operating expense, net$38 $36