Annual report pursuant to Section 13 and 15(d)

BUSINESS ACQUISITIONS - Narrative (Details)

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BUSINESS ACQUISITIONS - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Oct. 01, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]        
Goodwill recognized   $ 3,692 $ 3,367 $ 3,813
Acquired finite-lived intangible assets, useful life   7 years 7 months 6 days    
Trade name        
Business Acquisition [Line Items]        
Acquired finite-lived intangible assets, useful life   10 years 3 months 18 days    
Supply Chain  Solutions        
Business Acquisition [Line Items]        
Goodwill recognized   $ 2,442 2,230 2,682
U.S. Domestic Package        
Business Acquisition [Line Items]        
Goodwill recognized   $ 847 $ 715 $ 715
Roadie, Inc.        
Business Acquisition [Line Items]        
Goodwill recognized $ 375      
Intangible assets acquired 231      
Roadie, Inc. | Technology        
Business Acquisition [Line Items]        
Intangible assets acquired $ 145      
Acquired finite-lived intangible assets, useful life 8 years      
Roadie, Inc. | Trade name        
Business Acquisition [Line Items]        
Intangible assets acquired $ 67      
Acquired finite-lived intangible assets, useful life 10 years      
Roadie, Inc. | Other Intangible Assets        
Business Acquisition [Line Items]        
Intangible assets acquired $ 19      
Acquired finite-lived intangible assets, useful life 8 years      
Roadie, Inc. | Supply Chain  Solutions        
Business Acquisition [Line Items]        
Goodwill recognized $ 243      
Roadie, Inc. | U.S. Domestic Package        
Business Acquisition [Line Items]        
Goodwill recognized $ 132