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Schedule II - Valuation and qualifying accounts | 12 Months Ended
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May 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SCHEDULE II - Valuation and qualifying accounts | SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
(Dollars in millions) | BALANCE AT BEGINNING OF PERIOD |  | CHARGED TO COSTS AND EXPENSES |  | CHARGED TO OTHER ACCOUNTS(1) |  | WRITE-OFFS, NET |  | BALANCE AT END OF PERIOD |
Sales returns reserve |  |  |  |  |
For the year ended May 31, 2017 | $ | 444 |  | $ | 696 |  | $ | 3 |  | $ | (800 | ) | $ | 343 |
For the year ended May 31, 2018 | 343 |  | 640 |  | 5 |  | (658 | ) | 330 |
For the year ended May 31, 2019 (2) | 734 |  | 1,959 |  | (30 | ) | (1,820 | ) | 843 |
(1) | Amounts included in this column primarily relate to foreign currency translation.
(2) | As a result of the adoption of ASC Topic 606 during the first quarter of fiscal 2019, an asset for the estimated cost of inventory for expected products returns is now recognized separately from the liability for sales returns reserves, which is presented above.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 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) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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