The following table provides the components of accumulated other comprehensive income for the three months ended September 30, 2013:



(in millions)	Foreign Currency Translation		Postretirement Benefit Plans			Derivative Instruments			Total
Balance at July 1, 2013	$	272	$	(215	)	$	(2	)	$	55
Foreign currency translation adjustment	68		—			—			68
Amortization of net actuarial loss on postretirement benefit plans into:
Cost of revenue	—		1			—			1
Selling, general and administrative expenses	—		3			—			3
Other non-operating expense, net	—		1			—			1
Income tax expense on amortization of postretirement benefit plan items	—		(2		)	—			(2		)
Unrealized gain on foreign exchange agreements	—		—			2			2
Reclassification of unrealized loss on foreign exchange agreements into cost of revenue	—		—			1			1
Balance at September 30, 2013	$	340	$	(212	)	$	1		$	129

The following table provides the components of accumulated other comprehensive income for the nine months ended September 30, 2013:



(in millions)	Foreign Currency Translation		Postretirement Benefit Plans			Derivative Instruments			Total
Balance at January 1, 2013	$	336	$	(222	)	$	1		$	115
Foreign currency translation adjustment	4		—			—			4
Amortization of net actuarial loss on postretirement benefit plans into:
Cost of revenue	—		3			—			3
Selling, general and administrative expenses	—		8			—			8
Other non-operating expense, net	—		3			—			3
Income tax expense on amortization of postretirement benefit plan items	—		(4		)	—			(4		)
Reclassification of unrealized gain on foreign exchange agreements into revenue	—		—			(1		)	(1		)
Reclassification of unrealized loss on foreign exchange agreements into cost of revenue	—		—			1			1
Balance at September 30, 2013	$	340	$	(212	)	$	1		$	129