Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt [Abstract]

Long-term Debt

(In millions)	2011			2010
Notes with rates from 2.13% to 6.15%, due 2016 to 2041	$	5,308		$	3,807
Notes with rates from 7.00% to 7.75%, due 2013 to 2036		1,239			1,323
Other		419			394
Unamortized discounts		(506	)		(505	)
Total long-term debt	$	6,460		$	5,019