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New Accounting Pronouncements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018	Sep. 01, 2018
New Accounting Pronouncement, Early Adoption [Line Items]
Decrease in cash flows from operations			$ (312.0)	$ (299.7)
Increase in cash flows from investing activities			(36.9)	(194.7)
Increase to operating profit and corresponding increase to Miscellaneous expense (income)	$ (0.2)	$ 0.2	(2.6)	(3.8)
ASU 2016-15
New Accounting Pronouncement, Early Adoption [Line Items]
Proceeds from corporate-owned life insurance policies			$ 0.8	1.0
Decrease in cash flows from operations				1.0
Increase in cash flows from investing activities				1.0
ASU 2017-07
New Accounting Pronouncement, Early Adoption [Line Items]
Increase to operating profit and corresponding increase to Miscellaneous expense (income)		$ (1.5)		$ (4.6)
ASC 606
New Accounting Pronouncement, Early Adoption [Line Items]
ASC 606 adjustments					$ 13.0

X

- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

+ References

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

+ References

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Amount of cash inflow for proceeds from settlement of corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.

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