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Investments - Proceeds from Sales of Available for Sale Securities (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 02, 2018 | Sep. 03, 2017 | Aug. 28, 2016
Investments, Debt and Equity Securities [Abstract] |  |  |
Proceeds from sales of available for sale securities | $ 39 | $ 202 | $ 291

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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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