9. Debt

Debt as of March 29, 2013 and September 28, 2012 is as follows ($ in millions):

	As of

	March 29, 2013		September 28, 2012
3.375% public notes due 2015	$	258	$	257
3.75% public notes due 2018		67		67
8.5% public notes due 2019		364		364
7.0% public notes due 2019		246		247
6.875% public notes due 2021		466		466
4.625% public notes due 2023		42		42
Other⁽¹⁾⁽²⁾		49		48

Total debt		1,492		1,491
Less current portion		11		10

Long-term debt	$	1,481	$	1,481

⁽¹⁾: $11 million of the amount shown as other, comprises the current portion of the Company's total debt as of March 29, 2013.
⁽²⁾: $10 million of the amount shown as other, comprises the current portion of the Company's total debt as of September 28, 2012.

Fair Value

The carrying amount of Tyco's debt subject to the fair value disclosure requirements as of March 29, 2013 and September 28, 2012 was $1,443 million for both periods. The Company utilizes various valuation methodologies to determine the fair value of its debt, which is primarily dependent on the type of market in which the Company's debt is traded. When available, the Company uses quoted market prices to determine the fair value of its debt that is traded in active markets. As of March 29, 2013 and September 28, 2012, the fair value of the Company's debt which was actively traded was $1,737 million and $1,786 million, respectively. As of March 29, 2013 and September 28, 2012, the Company's debt that was subject to the fair value disclosure requirements was all actively traded and is classified as Level 1 in the fair value hierarchy.

Commercial paper

From time to time Tyco International Finance S.A. ("TIFSA") may issue commercial paper for general corporate purposes. The maximum aggregate amount of unsecured commercial paper notes available to be issued on a private placement basis under the commercial paper program is $1.0 billion as of March 29, 2013. As of March 29, 2013 and September 28, 2012, TIFSA had no commercial paper outstanding.

Credit Facilities

The Company's committed revolving credit facilities totaled $1.0 billion as of March 29, 2013. These revolving credit facilities may be used for working capital, capital expenditures and general corporate purposes. As of both March 29, 2013 and September 28, 2012, there were no amounts drawn under the Company's revolving credit facilities. Interest under the revolving credit facilities is variable and is calculated by reference to LIBOR or an alternate base rate.