Retirement Benefits (Tables)

3 Months Ended

Nov. 30, 2015

Boots Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

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,
	2015			2014
Service costs	$	1		$	—
Interest costs		81			—
Expected returns on plan assets		(65	)		—
Total net periodic pension costs	$	17		$	—

Defined Benefit Postretirement Health Benefit Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost for the postretirement health benefit plan (in millions):

	Three Months Ended November 30,
	2015			2014
Service cost	$	3		$	3
Interest cost		5			4
Amortization of actuarial loss		4			5
Amortization of prior service cost		(7	)		(6	)
Total postretirement benefit cost	$	5		$	6