Debt (Tables)

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt consisted of the following:

($ in millions)	September 30 2013		December 31 2012
Term loan due March 30, 2016	$	503	$	525
Senior notes due March 15, 2018, 6.875%	600		600
Senior notes due March 15, 2021, 7.125%	600		600
Mississippi economic development revenue bonds due May 1, 2024, 7.81%	84		84
Gulf opportunity zone industrial development revenue bonds due December 1, 2028, 4.55%	21		21
Total long-term debt	1,808		1,830
Less current portion	65		51
Long-term debt, net of current portion	$	1,743	$	1,779