Notes Payable (Tables) (Senior unsecured notes and bonds)

12 Months Ended

Dec. 31, 2012

Senior unsecured notes and bonds

Credit Facility

Schedule of debt instrument

Our senior unsecured notes and bonds consisted of the following, sorted by maturity date (dollars in millions):

December 31,	2012		2011
5.375% notes, issued in March 2003 and due in March 2013	$	100	$	100
5.5% notes, issued in November 2003 and due in November 2015	150		150
5.95% notes, issued in September 2006 and due in September 2016	275		275
5.375% notes, issued in September 2005 and due in September 2017	175		175
2.0% notes, issued in October 2012 and due in January 2018	350		--
6.75% notes, issued in September 2007 and due in August 2019	550		550
5.75% notes, issued in June 2010 and due in January 2021	250		250
3.25% notes, issued in October 2012 and due in October 2022	450		--
5.875% bonds, $100 issued in March 2005 and $150 issued in June 2011, both due in March 2035	250		250
	$	2,550	$	1,750

Summary of maturity of notes and bonds payable

The following table summarizes the maturity of our notes and bonds payable as of December 31, 2012 (dollars in millions):

Year of Maturity	Notes and Bonds
2013	$	100
2014	--
2015	150
2016	275
2017	175
Thereafter	1,850
Totals	$	2,550