Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2012

Credit Agreement/Long-Term Debt [Abstract]

Long-term debt

	September 30, 2012		December 31, 2011
	(In millions)
2016 Notes - 3.500% Notes due 2016	$	500	$	500
2017 Notes - 2.300% Notes due 2017		500		—
2019 Notes - 8.125% Notes due 2019		866		845
2020 Notes - 6.875% Notes due 2020		750		750
2040 Notes - 8.125% Notes due 2040		250		250
2041 Notes - 7.000% Notes due 2041		250		250
Total long-term debt	$	3,116	$	2,595