Retirement Benefits (Tables)

3 Months Ended

Nov. 30, 2016

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of net periodic pension costs for the defined benefit pension plans (in millions):

	Three Months Ended November 30,
	2016			2015
Service costs	$	2		$	1
Interest costs		43			81
Expected returns on plan assets		(37	)		(65	)
Total net periodic pension costs	$	8		$	17