v3.26.1
Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance $ 11,740 $ 3,953 $ 4,090
Other comprehensive income/(loss) 132 (43) (158)
Ending Balance 11,801 11,740 3,953
Foreign Currency Translation      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (910) (931) (823)
Other comprehensive loss before reclassifications 46 13 (108)
Amounts reclassified from accumulated other comprehensive loss 18 8 0
Other comprehensive income/(loss) 64 21 (108)
Ending Balance (846) (910) (931)
Net Investment Hedge      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (73) (13) (13)
Other comprehensive loss before reclassifications 66 (60) 0
Amounts reclassified from accumulated other comprehensive loss (6) 0 0
Other comprehensive income/(loss) 60 (60) 0
Ending Balance (13) (73) (13)
Pension      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (53) (55) (10)
Other comprehensive loss before reclassifications (15) (14) (46)
Amounts reclassified from accumulated other comprehensive loss 14 16 1
Other comprehensive income/(loss) (1) 2 (45)
Ending Balance (54) (53) (55)
Effective Derivatives      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (27) (21) (16)
Other comprehensive loss before reclassifications 11 (8) (9)
Amounts reclassified from accumulated other comprehensive loss (2) 2 4
Other comprehensive income/(loss) 9 (6) (5)
Ending Balance (18) (27) (21)
Total Accumulated Other Comprehensive Loss      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (1,063) (1,020) (862)
Other comprehensive loss before reclassifications 108 (69) (163)
Amounts reclassified from accumulated other comprehensive loss 24 26 5
Other comprehensive income/(loss) 132 (43) (158)
Ending Balance $ (931) $ (1,063) $ (1,020)