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Restructuring and Reorganization Costs (Tables)
3 Months Ended
Mar. 31, 2021
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring and Related Costs
Amounts Before Tax
(Millions of dollars)
Balance at January 1, 2021$470 
Accruals/Adjustments— 
Payments(272)
Balance at March 31, 2021$198