v3.26.1
ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in AOCI by Component (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Changes in AOCI, net of tax by component      
Beginning of the period $ 3,865 $ 5,314  
Amount of (Gain) Loss Reclassified from AOCI into Earnings 27 (37)  
Provision for income taxes (51) 18 $ (6)
End of the period 3,806 3,865 5,314
Accumulated other comprehensive loss (1,153) (1,127) (1,140)
Net derivative instruments      
Changes in AOCI, net of tax by component      
Beginning of the period (5) 52 44
Other comprehensive income (loss), before reclassifications, before tax 29 (19) 79
(Provision) benefit for income taxes (6) 6 (18)
Income tax impact of reclassification (3) 12 16
End of the period 23 (5) 52
Net derivative instruments | Foreign currency forward contracts      
Changes in AOCI, net of tax by component      
Amount of (Gain) Loss Reclassified from AOCI into Earnings 29 (35) (50)
Net derivative instruments | Interest rate contracts      
Changes in AOCI, net of tax by component      
Amount of (Gain) Loss Reclassified from AOCI into Earnings (2) (2) 0
Net derivative instruments | Cross-currency swap contracts      
Changes in AOCI, net of tax by component      
Amount of (Gain) Loss Reclassified from AOCI into Earnings (19) (19) (19)
Amounts Included in Net Periodic Benefit Cost      
Changes in AOCI, net of tax by component      
Beginning of the period (204) (183) (177)
End of the period (130) (204) (183)
Net actuarial gains (losses) recognized      
Changes in AOCI, net of tax by component      
Other comprehensive income (loss), before reclassifications, before tax 77 (31) (27)
Amount of (Gain) Loss Reclassified from AOCI into Earnings 20 14 (4)
Net prior service cost (credit) recognized      
Changes in AOCI, net of tax by component      
Other comprehensive income (loss), before reclassifications, before tax 0 0 25
Amount of (Gain) Loss Reclassified from AOCI into Earnings (5) (6) (3)
Translation adjustments      
Changes in AOCI, net of tax by component      
Other comprehensive income (loss), before reclassifications, before tax 1 (1) 1
Curtailments      
Changes in AOCI, net of tax by component      
Amount of (Gain) Loss Reclassified from AOCI into Earnings 0 (2) 0
Settlements      
Changes in AOCI, net of tax by component      
Amount of (Gain) Loss Reclassified from AOCI into Earnings 1 1 0
Benefit (provision) for income taxes      
Changes in AOCI, net of tax by component      
(Provision) benefit for income taxes (17) 6 0
Provision for deferred income taxes on reclassification      
Changes in AOCI, net of tax by component      
Income tax impact of reclassification (3) (2) 2
Cumulative translation adjustments      
Changes in AOCI, net of tax by component      
Beginning of the period (918) (1,009) (801)
Other comprehensive income (loss), before reclassifications, before tax (106) 95 (129)
Purchase of shares from redeemable noncontrolling interest 0 0 (73)
Provision for income taxes (22) (4) (6)
End of the period $ (1,046) $ (918) $ (1,009)