Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES - Additional Information (Detail)

v3.21.2
INCOME TAXES - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Income Tax            
Effective tax rate 22.10%   25.00% 22.50% 24.20%  
Effective income tax rate reconciliation, excess tax benefit 0.30%     0.80% 0.30%  
Transformation cost $ 116   $ 112 $ 234 $ 157  
Income tax benefit from transformation strategy 28   29 56 39  
Income tax benefit (760)   $ (589) (2,172) $ (874)  
Defined Benefit Plan, Mark to Market Gain (Loss), Tax Effect   $ 788        
Defined Benefit Plan, Mark to Market Gain (Loss)   $ 3,300        
UPS Freight Business | Held-for-sale            
Income Tax            
Impairment charges on property plant and equipment           $ 686
Impairment charges on property plant and equipment           $ 686
UPS Freight Business | Disposed of by Sale            
Income Tax            
Pre-tax gain 101     35    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Tax Expense (Benefit) $ 24     $ 8