v3.26.3
Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended
Sep. 30, 2026
Sep. 30, 2025
AOCI, Net of Tax [Roll Forward]    
Balance at beginning of period $ (2,724) $ (2,634)
Total other comprehensive income/(loss), net of tax 6 (4)
Other Comprehensive Income (Loss), Tax 7 1
Balance at end of period (2,866) (2,731)
Foreign Currency Translation Adjustments    
AOCI, Net of Tax [Roll Forward]    
Balance at beginning of period (140) (141)
Other comprehensive income, before reclassifications 4 (4)
Amounts reclassified to earnings 0 0
Total other comprehensive income/(loss), net of tax 4 (4)
Balance at end of period (136) (145)
Accumulated Other Comprehensive Loss    
AOCI, Net of Tax [Roll Forward]    
Balance at beginning of period (165) (155)
Total other comprehensive income/(loss), net of tax 6 (4)
Balance at end of period (159) (159)
Accumulated Other Comprehensive Loss    
AOCI, Net of Tax [Roll Forward]    
Balance at beginning of period (165) (155)
Other comprehensive income, before reclassifications 8 (2)
Amounts reclassified to earnings (2) (2)
Balance at end of period (159) (159)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest    
AOCI, Net of Tax [Roll Forward]    
Balance at beginning of period (25) (14)
Other comprehensive income, before reclassifications 4 2
Amounts reclassified to earnings (2) (2)
Total other comprehensive income/(loss), net of tax 2 0
Balance at end of period $ (23) $ (14)