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Allowance for Doubtful Accounts (Detail) - Allowance for doubtful accounts - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance, beginning of period | $ 434 | $ 397 | $ 361
Charged to costs and other | 560 | 153 | 134
Write-offs | (178) | (116) | (98)
Balance, end of period | 816 | 434 | 397
Accounts receivable, net of allowance for doubtful accounts |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance, beginning of period | 411 | 377 |
Balance, end of period | 788 | 411 | 377
Other Long-term Assets |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance, beginning of period | 23 | 20 |
Balance, end of period | $ 28 | $ 23 | $ 20

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses, as well as other adjustments to the reserves that are not charged to costs and expenses. + References No definition available. + Details
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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column D)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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