Annual report pursuant to Section 13 and 15(d)

ASSETS HELD FOR SALE - Additional Information (Details)

v3.20.4
ASSETS HELD FOR SALE - Additional Information (Details) - USD ($)
12 Months Ended
Jan. 24, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Goodwill impairment charge   $ 494,000,000 $ 0 $ 0
Disposal Group, Held-for-sale, Not Discontinued Operations | UPS Freight        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Asset impairment charges   686,000,000    
Goodwill impairment charge   494,000,000    
Valuation allowance   $ 192,000,000    
Disposal Group, Held-for-sale, Not Discontinued Operations | UPS Freight | Subsequent Event [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from divestiture of operations $ 800,000,000