v3.26.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Income Taxes          
Goodwill impairment loss   $ 184      
Effective Tax Rate Impact From Certain Foreign Jurisdictions   14 $ 17    
Income Tax Expense (Benefit)   $ 469 $ 532 $ 348  
Effective Income Tax Rate Reconciliation, Percent   21.60% 25.30% 28.90%  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   21.00% 21.00% 21.00%  
Deferred income taxes and other liabilities   $ 9,115 $ 8,882    
Unrecognized tax benefits that would impact effective tax rate   881 871 $ 882  
Undistributed Earnings of Foreign Subsidiaries   1,000      
Deferred tax assets on tax credit carryforwards   (426) (386)    
Valuation allowance on operating loss carryforwards   218      
Unrecognized tax benefits   907 879 981 $ 1,015
Unrecognized tax benefits, interest and penalties accrued   75 65 65  
GMPD          
Income Taxes          
Goodwill impairment loss   0 $ 675    
Pharmaceutical and Specialty Solutions          
Income Taxes          
Goodwill impairment loss $ 184 184      
Federal          
Income Taxes          
Tax credit carryforwards   378      
State and Local          
Income Taxes          
Tax credit carryforwards   12,200      
Foreign          
Income Taxes          
Tax credit carryforwards   1,000      
Total Opioid Litigation [Member]          
Income Taxes          
Litigation settlement       5,600  
GMPD          
Income Taxes          
Income Tax Expense (Benefit)       $ 58  
Pharmaceutical and Specialty Solutions          
Income Taxes          
Income Tax Expense (Benefit)   $ 23