v3.22.4
Segment Information (Revenue by Reportable Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]        
Total revenue $ 51,469 $ 45,457 $ 101,072 $ 89,425
Operating Segments        
Segment Reporting Information [Line Items]        
Total revenue 51,470 45,460 101,076 89,431
Operating Segments | Pharmaceutical        
Segment Reporting Information [Line Items]        
Total revenue 47,673 41,375 93,501 81,197
Operating Segments | Medical        
Segment Reporting Information [Line Items]        
Total revenue 3,797 4,085 7,575 8,234
Corporate        
Segment Reporting Information [Line Items]        
Total revenue (1) (3) (4) (6)
Pharmaceutical Distribution and Specialty [Member] | Operating Segments | Pharmaceutical        
Segment Reporting Information [Line Items]        
Total revenue 47,391 41,164 92,938 80,778
Nuclear Precision Health Services [Member] | Operating Segments | Pharmaceutical        
Segment Reporting Information [Line Items]        
Total revenue 282 211 563 419
Medical distribution and products [Member] | Operating Segments | Medical        
Segment Reporting Information [Line Items]        
Total revenue 3,099 3,446 6,239 7,013
Cardinal Health At Home [Member] | Operating Segments | Medical        
Segment Reporting Information [Line Items]        
Total revenue $ 698 $ 639 $ 1,336 $ 1,221