The composition of offsetting derivative instruments, financial assets, and financial liabilities was as follows.



	Gross Amounts of Recognized Assets/(Liabilities)			Gross Amounts Offset in the Condensed Consolidated Balance Sheet		Net Amounts of Assets/(Liabilities) Presented in the Condensed Consolidated Balance Sheet
									Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet
September 30, 2013 ($ in millions)									Financial Instruments			Collateral (a)			Net Amount
Assets
Derivative assets in net asset positions	$	256		$	—	$	256		$	(83	)	$	(109	)	$	64
Derivative assets in net liability positions	10			—		10			(10		)	—			—
Derivative assets with no offsetting arrangements	34			—		34			—			—			34
Total assets	$	300		$	—	$	300		$	(93	)	$	(109	)	$	98
Liabilities
Derivative liabilities in net liability positions	$	(125	)	$	—	$	(125	)	$	10		$	98		$	(17	)
Derivative liabilities in net asset positions	(82		)	—		(82		)	82			—			—
Derivative liabilities with no offsetting arrangements	(21		)	—		(21		)	—			—			(21		)
Total derivative liabilities	(228		)	—		(228		)	92			98			(38		)
Securities sold under agreements to repurchase	(566		)	—		(566		)	—			290			(276		)
Total liabilities	$	(794	)	$	—	$	(794	)	$	92		$	388		$	(314	)


(a)	Financial collateral received/pledged shown as a balance based on the sum of all net asset and liability positions between Ally and each individual derivative counterparty.



	Gross Amounts of Recognized Assets/(Liabilities)			Gross Amounts Offset in the Condensed Consolidated Balance Sheet		Net Amounts of Assets/(Liabilities) Presented in the Condensed Consolidated Balance Sheet
									Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet
December 31, 2012 ($ in millions)									Financial Instruments			Collateral (a)			Net Amount
Assets
Derivative assets in net asset positions	$	1,395		$	—	$	1,395		$	(503	)	$	(841	)	$	51
Derivative assets in net liability positions	788			—		788			(788		)	—			—
Derivative assets with no offsetting arrangements	115			—		115			—			—			115
Total assets	$	2,298		$	—	$	2,298		$	(1,291	)	$	(841	)	$	166
Liabilities
Derivative liabilities in net liability positions	$	(1,929	)	$	—	$	(1,929	)	$	788		$	1,092		$	(49	)
Derivative liabilities in net asset positions	(503		)	—		(503		)	503			—			—
Derivative liabilities with no offsetting arrangements	(36		)	—		(36		)	—			—			(36		)
Total liabilities	$	(2,468	)	$	—	$	(2,468	)	$	1,291		$	1,092		$	(85	)


(a)	Financial collateral received/pledged shown as a balance based on the sum of all net asset and liability positions between Ally and each individual derivative counterparty.