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INCOME TAXES (Tables)
9 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
The reconciliations of income tax expense with federal income taxes at the statutory rate are as follows (in millions of dollars):
 Three Months Ended September 30, Nine Months Ended September 30,
 2020201920202019
Federal income tax $76 $67 $145 $218 
States income taxes, net of federal benefit12 23 28 
Foreign rate difference12 18 14 
Foreign subsidiaries tax impacts, non operating— (71)— 
Change in valuation allowance
Other, net(3)(4)(5)(4)
Income tax expense$106 $78 $118 $261 
Effective tax rate29.3 %24.2 %17.3 %25.1 %