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Commitments and Contingencies - Other (Details) $ in Millions		2 Months Ended	12 Months Ended
	Oct. 24, 2019 USD ($) lawsuit	Oct. 24, 2019 USD ($)	Aug. 31, 2019 USD ($) lawsuit	Aug. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Insurance Receivable			$ 89	$ 36
GEORGIA \| Wrongful Death Lawsuits
Loss Contingencies [Line Items]
Amount Awarded			$ 103
GEORGIA \| Wrongful Death Lawsuits \| Settled Litigation
Loss Contingencies [Line Items]
Claims Settled \| lawsuit			3
Amount Awarded			$ 35
GEORGIA \| Wrongful Death Lawsuits \| Pending Litigation
Loss Contingencies [Line Items]
Claims Filed \| lawsuit			5
Accrual loss contingencies amount			$ 83
Insurance Receivable				$ 30
Subsequent Event \| GEORGIA \| Wrongful Death Lawsuits \| Settled Litigation
Loss Contingencies [Line Items]
Claims Settled \| lawsuit	2
Amount Awarded	$ 68
Subsequent Event \| GEORGIA \| Wrongful Death Lawsuits \| Pending Litigation
Loss Contingencies [Line Items]
Accrual loss contingencies paid amount		$ 83