Quarterly report [Sections 13 or 15(d)]

REVENUE RECOGNITION - Disaggregation of Revenue (Details)

v3.26.1
REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of Revenue [Line Items]    
Revenue $ 21,202 $ 21,546
Supply Chain Solutions ("SCS")    
Disaggregation of Revenue [Line Items]    
Revenue 2,537 2,713
U.S | U.S. Domestic Package    
Disaggregation of Revenue [Line Items]    
Revenue 14,125 14,460
International | International Package    
Disaggregation of Revenue [Line Items]    
Revenue 4,540 4,373
Next Day Air | U.S | U.S. Domestic Package    
Disaggregation of Revenue [Line Items]    
Revenue 2,354 2,361
Deferred | U.S | U.S. Domestic Package    
Disaggregation of Revenue [Line Items]    
Revenue 1,045 1,049
Ground | U.S | U.S. Domestic Package    
Disaggregation of Revenue [Line Items]    
Revenue 10,438 10,709
Cargo and Other | U.S | U.S. Domestic Package    
Disaggregation of Revenue [Line Items]    
Revenue 288 341
Cargo and Other | International | International Package    
Disaggregation of Revenue [Line Items]    
Revenue 157 158
Domestic | International | International Package    
Disaggregation of Revenue [Line Items]    
Revenue 835 771
Export | International | International Package    
Disaggregation of Revenue [Line Items]    
Revenue 3,548 3,444
Forwarding | Supply Chain Solutions ("SCS")    
Disaggregation of Revenue [Line Items]    
Revenue 656 726
Logistics | Supply Chain Solutions ("SCS")    
Disaggregation of Revenue [Line Items]    
Revenue 1,409 1,572
Other | Supply Chain Solutions ("SCS")    
Disaggregation of Revenue [Line Items]    
Revenue $ 472 $ 415