v3.26.3
INVESTMENTS (Details)
$ in Millions, € in Billions
1 Months Ended 3 Months Ended 4 Months Ended
Sep. 24, 2026
EUR (€)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Jun. 01, 2026
May 31, 2026
USD ($)
Net Investment Income [Line Items]                  
Equity securities       $ 576   $ 576     $ 564
Gain on short-term investment   $ 4,492 $ 0 (1,238) $ 0 3,254 $ 0    
Short-term investment       3,254   3,254     0
Debt securities       $ 266   $ 266     $ 236
FedEx Freight Holding                  
Net Investment Income [Line Items]                  
Retained ownership interest percentage, after spin-off               19.90%  
Lux TopCo S.A. R.L.                  
Net Investment Income [Line Items]                  
FedEx holding (as a percent) 37.00%                
Purchase price consideration | € € 2.2