LONG-TERM DEBT

Long-term debt obligations on the consolidated balance sheet (in millions):



	March 31, 2013			December 31, 2012
Fixed-rate notes payable due through 2024	$	764		$	844
Variable-rate notes payable due through 2023	182			188
Long-term debt	946			1,032
Less current portion	106			161
Total	$	840		$	871

Weighted-average fixed-interest rate	5.8		%	5.8		%
Weighted-average variable-interest rate	1.8		%	2.0		%

During the three months ended March 31, 2013, the Company made debt payments of $88 million.

At March 31, 2013, long-term debt principal payments for the next five years and thereafter are as follows (in millions):



	Total
Remainder of 2013	$	74
2014	117
2015	113
2016	111
2017	116
Thereafter	415
Total	$	946

Bank Lines of Credit

The Company has two $100 million credit facilities. Both facilities have variable interest rates based on LIBOR plus a specified margin. One of the $100 million facilities, which expires in August 2015, is secured by aircraft. The other $100 million facility, which expires in March 2016, is secured by certain accounts receivable, spare engines, spare parts and ground service equipment. The Company has no immediate plans to borrow using either of these facilities. These facilities have a requirement to maintain a minimum unrestricted cash and marketable securities balance of $500 million. The Company is in compliance with this covenant at March 31, 2013.