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Share-Based Compensation (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Tax benefit related to share-based compensation | $ 12 |  |
Total expense on employee retirement savings plans | $ 66 | $ 60 | $ 55
Performance Share Units | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Target performance goal (as a percent) | 234.00% |  |
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 0 | 0 | 0
2021 LTIP [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares available for grant | 21,000 |  |
2021 LTIP [Member] | Awards Other than Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares available for grant | 8,000 |  |
2021 LTIP [Member] | Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares available for grant | 21,000 |  |

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