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Schedule II - Valuations and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | $ 687 | $ 626 | $ 494 | $ 541
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 | (2,353) | (2,513) | (2,347) |
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 | 2,293 | 2,381 | 2,395 |
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 | (60) | (37) | (27) |
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 | 193 | 139 | 137 | 135
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 | (140) | (113) | (59) |
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 | 87 | 111 | 58 |
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 | 14 | 7 | 9 | 19
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 | (8) | (2) | (3) |
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 | 1 | 0 | 13 |
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 | 479 | 479 | 347 | 386
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 | (2,205) | (2,402) | (2,285) |
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 | 2,205 | 2,270 | 2,324 |
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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