Accumulated other comprehensive income (loss)

6 Months Ended

Feb. 28, 2018

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated other comprehensive income (loss)

Accumulated other comprehensive income (loss)

The following is a summary of net changes in accumulated other comprehensive income by component and net of tax for the three and six months ended February 28, 2018 and February 28, 2017 (in millions):

	Pension/ post- retirement obligations			Unrecognized gain (loss) on available-for- sale investments		Unrealized gain (loss) on cash flow hedges			Share of OCI of equity method investments			Currency translation adjustment			Total
Balance at November 30, 2017	$	(139	)	$	—	$	(33	)	$	—		$	(2,371	)	$	(2,543	)
Other comprehensive income (loss) before reclassification adjustments	—			—		—			1			381			382
Amounts reclassified from accumulated OCI	(3		)	—		1			—			—			(2		)
Tax benefit (provision)	1			—		—			(1		)	—			—
Net other comprehensive income (loss)	(2		)	—		1			—			381			380
Balance at February 28, 2018	$	(141	)	$	—	$	(32	)	$	—		$	(1,990	)	$	(2,163	)

	Pension/ post- retirement obligations			Unrecognized gain (loss) on available-for- sale investments		Unrealized gain (loss) on cash flow hedges			Share of OCI of equity method investments			Currency translation adjustment			Total
Balance at August 31, 2017	$	(139	)	$	—	$	(33	)	$	(2	)	$	(2,877	)	$	(3,051	)
Other comprehensive income (loss) before reclassification adjustments	(1		)	—		—			4			887			890
Amounts reclassified from accumulated OCI	(3		)	—		2			—			—			(1		)
Tax benefit (provision)	2			—		(1		)	(2		)	—			(1		)
Net other comprehensive income (loss)	(2		)	—		1			2			887			888
Balance at February 28, 2018	$	(141	)	$	—	$	(32	)	$	—		$	(1,990	)	$	(2,163	)

	Pension/ post- retirement obligations			Unrecognized gain (loss) on available-for- sale investments		Unrealized gain (loss) on cash flow hedges			Share of OCI of equity method investments			Currency translation adjustment			Total
Balance at November 30, 2016	$	(221	)	$	1	$	(36	)	$	(2	)	$	(3,552	)	$	(3,810	)
Other comprehensive income (loss) before reclassification adjustments	6			—		—			(7		)	(1		)	(2		)
Amounts reclassified from accumulated OCI	—			—		1			—			—			1
Tax benefit (provision)	(1		)	—		—			3			—			2
Net other comprehensive income (loss)	5			—		1			(4		)	(1		)	1
Balance at February 28, 2017	$	(216	)	$	1	$	(35	)	$	(6	)	$	(3,553	)	$	(3,809	)

	Pension/ post- retirement obligations			Unrecognized gain (loss) on available-for- sale investments			Unrealized gain (loss) on cash flow hedges			Share of OCI of equity method investments			Currency translation adjustment			Total
Balance at August 31, 2016	$	(212	)	$	2		$	(37	)	$	(1	)	$	(2,744	)	$	(2,992	)
Other comprehensive income (loss) before reclassification adjustments	(5		)	(1		)	—			(8		)	(809		)	(823		)
Amounts reclassified from accumulated OCI	—			—			3			—			—			3
Tax benefit (provision)	1			—			(1		)	3			—			3
Net other comprehensive income (loss)	(4		)	(1		)	2			(5		)	(809		)	(817		)
Balance at February 28, 2017	$	(216	)	$	1		$	(35	)	$	(6	)	$	(3,553	)	$	(3,809	)