Debt

Debt consists of the following (in millions):



	March 31, 2015						December 31, 2014
	North America		International		Total		North America		International		Total
Secured Debt
Revolving credit facilities	$	1,781	$	4,922	$	6,703	$	1,701	$	5,327	$	7,028
Securitization notes payable - consumer	13,710		2,323		16,033		13,253		2,868		16,121
Securitization notes payable - commercial	500		1,457		1,957		500		1,565		2,065
Total secured debt	$	15,991	$	8,702	$	24,693	$	15,454	$	9,760	$	25,214

Unsecured Debt
Senior notes	$	10,060	$	1,234	$	11,294	$	7,846	$	604	$	8,450
Credit facilities	—		2,459		2,459		—		2,974		2,974
Other unsecured debt	—		679		679		—		793		793
Total unsecured debt	$	10,060	$	4,372	$	14,432	$	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 three months ended March 31, 2015, we issued securitization notes payable of $2.0 billion through securitization transactions, and we entered into new credit facilities or renewed credit facilities with a total additional net borrowing capacity of $770 million.

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.

Subsequent to March 31, 2015, our top-tier holding company issued an additional $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 are due in April 2018. 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 three months ended March 31, 2015, we increased borrowing capacity on unsecured committed credit facilities by $90 million.