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Schedule II - Valuations and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | $ 779 | $ 898 | $ 944 | $ 729
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 2,414 | 2,514 | 2,702 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 0 | 1 | 1 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 2,533 | 2,561 | 2,488 |
Pricing Disputes [Member] |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 98 | 87 | 70 |
SEC Schedule, 12-09, Allowance, Credit Loss [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 299 | 273 | 243 | 207
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 197 | 154 | 129 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 0 | 1 | 1 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 171 | 125 | 94 |
Prior Year Recoveries |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Addition, Recovery | 1 | 1 | 1 |
SEC Schedule, 12-09, Allowance, Loss on Finance Receivable [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 6 | 8 | 12 | 27
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 0 | 1 | 5 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 0 | 0 | 0 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 2 | 5 | 20 |
Sales Returns and Allowances [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 474 | 617 | 689 | $ 495
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 2,217 | 2,359 | 2,568 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 0 | 0 | 0 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | $ 2,360 | $ 2,431 | $ 2,374 |

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