Debt

Debt consists of the following (in millions):



	June 30, 2015						December 31, 2014
	North America		International		Total		North America		International		Total
Secured Debt
Revolving credit facilities	$	1,008	$	5,203	$	6,211	$	1,701	$	5,327	$	7,028
Securitization notes payable - consumer	15,435		2,790		18,225		13,253		2,868		16,121
Securitization notes payable - commercial	1,250		931		2,181		500		1,565		2,065
Total secured debt	$	17,693	$	8,924	$	26,617	$	15,454	$	9,760	$	25,214

Unsecured Debt
Senior notes	$	12,862	$	1,281	$	14,143	$	7,846	$	604	$	8,450
Credit facilities	—		2,848		2,848		—		2,974		2,974
Other unsecured debt	—		722		722		—		793		793
Total unsecured debt	$	12,862	$	4,851	$	17,713	$	7,846	$	4,371	$	12,217

Secured Debt

Most of the secured debt was issued by VIEs and is repayable only from proceeds related to the underlying pledged finance receivables and leases. Refer to Note 8 - "Variable Interest Entities" for additional information relating to our involvement with VIEs. During the six months ended June 30, 2015, we issued securitization notes payable of $6.8 billion through securitization transactions, and we entered into new credit facilities or renewed credit facilities with a total additional net borrowing capacity of $4.1 billion.

Unsecured Debt

In January 2015, our top-tier holding company issued $2.25 billion in senior notes comprised of $1.0 billion of 3.15% notes due in January 2020, $1.0 billion of 4.0% notes due in January 2025 and $250 million in floating rate notes due in January 2020. All of these notes are guaranteed by our principal operating subsidiary, AmeriCredit Financial Services, Inc. ("AFSI").

In February 2015, a European subsidiary issued €650 million of 0.85% notes under our Euro medium term notes program. These notes are due in February 2018. All of these notes are guaranteed by our top-tier holding company and by AFSI.

In April 2015, our top-tier holding company issued $2.4 billion in senior notes comprised of $850 million of 2.4% notes due in April 2018, $1.25 billion of 3.45% notes due in April 2022 and $300 million of floating rate notes due in April 2018. All of these notes are guaranteed by AFSI.

In May 2015, our primary Canadian operating subsidiary issued CAD$500 million of 3.08% notes due in May 2020. The notes are guaranteed by our top-tier holding company and by AFSI.

Subsequent to June 30, 2015, our top-tier holding company issued an additional $2.3 billion in senior notes comprised of $1.5 billion of 3.2% notes due in July 2020 and $800 million of 4.3% notes due in July 2025. All of these notes are guaranteed by AFSI.

The International Segment utilizes unsecured credit facilities with banks as well as non-bank funding sources. During the six months ended June 30, 2015, we increased borrowing capacity on unsecured committed credit facilities by $185 million.