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Schedule II - Valuations and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | $ 944 | $ 729 | $ 687 | $ 626
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 | 2,702 | 2,407 | 2,353 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 1 | 1 | 1 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 2,488 | 2,366 | 2,293 |
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 | 70 | 49 | 60 |
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 | 242 | 206 | 193 | 139
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 | 129 | 139 | 140 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account | 1 | 1 | 1 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 94 | 127 | 87 |
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 | 12 | 27 | 14 | 7
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 | 5 | 15 | 8 |
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 | 20 | 2 | 1 |
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 | 689 | 495 | 479 | 479
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 | 2,568 | 2,253 | 2,205 |
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 | 2,374 | 2,237 | 2,205 |
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 1 | 1 | 1 | $ 1
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 | 0 | 0 |
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 | $ 0 | $ 0 | $ 0 |

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