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Income Taxes - Reconciliations of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2021
Reconciliation of Unrecognized Tax Benefits [Roll Forward] |  |  |
Beginning balance | $ 253 | $ 241 | $ 190
Additions for tax positions of prior years | 1 | 22 | 15
Reductions for tax positions of prior years | (7) | (21) | (3)
Additions for tax positions related to current year | 23 | 36 | 36
Cash settlements | (3) | (3) | 0
Reductions from lapses in statutes of limitations | (8) | (3) | (2)
Reductions from non-cash settlements with taxing authorities | (2) | (9) | 0
Foreign exchange rate adjustment | 0 | (10) | 5
Ending balance | 257 | 253 | 241
Unrecognized tax benefits that would affect the effective tax rate (if recognized) | $ 150 | $ 150 | $ 139

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- Definition Amount of increase (decrease) in unrecognized tax benefits resulting from foreign exchange rate adjustments. + References No definition available. + Details
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- Definition The gross amount of decreases in unrecognized tax benefits resulting from cash settlements. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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