Notes Payable (Tables)

3 Months Ended

Mar. 31, 2012

Notes Payable [Abstract]

Schedule of senior unsecured notes payable and bonds

Our senior unsecured notes and bonds consist of the following at March 31, 2012 and December 31, 2011, sorted by maturity date (dollars in millions):

5.375% notes, issued in March 2003 and due in March 2013	$	100
5.5% notes, issued in November 2003 and due in November 2015		150
5.95% notes, issued in September 2006 and due in September 2016		275
5.375% notes, issued in September 2005 and due in September 2017		175
6.75% notes, issued in September 2007 and due in August 2019		550
5.75% notes, issued in June 2010 and due in January 2021		250
5.875% bonds, $100 issued in March 2005 and $150 issued in June 2011, both due in March 2035		250
	$	1,750