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Share-Based Compensation Narrative (Details)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Reportable_Segments
Sep. 30, 2021
USD ($)
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Tax benefit related to share-based compensation $ 3 $ 4      
Restricted Share Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period (in years) 3 years        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 119        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 2 years        
Performance Share Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 28        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 2 years        
Vesting Period in years for Shares | Reportable_Segments 3        
Performance Share Units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target performance goal (as a percent) 0.00%   0.00% 0.00% 0.00%
Performance Share Units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target performance goal (as a percent) 234.00%   234.00% 240.00% 240.00%