Quarterly report pursuant to Section 13 or 15(d)

ASSETS HELD FOR SALE - Additional Information (Details)

v3.21.1
ASSETS HELD FOR SALE - Additional Information (Details) - UPS Freight Business - Held-for-sale - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Jan. 24, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Divestiture consideration     $ 800
Impairment charges   $ 686  
Impairment charges, net of tax   629  
Goodwill impairment charge   494  
Increase in valuation allowance $ 66 $ 192  
Increase in valuation allowance, after tax $ 50