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Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended
--- | --- | ---
Sep. 28, 2021 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Income Taxes [Line Items] |  |  |  |  |
Increase to net earnings from tax holidays and tax incentives program |  | $ 49.6 | $ 40.5 | $ 38.0 |
Increase to net earnings per diluted share from tax holidays and tax incentives program (in dollars per share) |  | $ 0.34 | $ 0.27 | $ 0.26 |
Undistributed earnings |  | $ 4,100.0 |  |  |
Australian Taxation Office |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Percentage of recognized tax benefit for uncertain tax position |  | 50.00% |  |  |
Domestic Tax Authority |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | $ 16.5 |  |  |
Domestic Tax Authority | Australian Taxation Office |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Net impact of settlement |  |  |  | $ 238.7 | $ 238.7
Gross settlement | $ 381.7 |  |  | 381.7 | 381.7
Penalties and interest |  |  |  | 48.1 | 48.1
Liability (refund) adjustment from settlement with taxing authority |  |  |  | 143.0 | 143.0
Remitted final payment | 284.8 |  |  |  |
Prior remittance payments | $ 96.9 |  |  |  |
Foreign Tax Authority |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | 6.2 |  |  |
Foreign Tax Authority | Australian Taxation Office |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Other comprehensive income, foreign currency translation adjustment, tax |  |  |  | 14.1 | 14.1
Tax credits and deductions |  |  |  | $ 4.1 | $ 4.1
State and Local Jurisdiction |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Amount of deferred taxes that would have been recognized if the earnings has not been permanently reinvested |  | 4.9 |  |  |
Valuation Allowance | Foreign Tax Authority |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | 0.8 |  |  |
Capital loss |  | $ 8.6 |  |  |

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