XML 102 R7.htm IDEA: XBRL DOCUMENT

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Debt Instrument [Line Items]
Mandatory convertible preferred stock dividend rate percentage (in hundredths)		6.75%	6.75%
Convertible perpetual preferred stock dividend rate percentage (in hundredths)			5.50%
Defined benefit plans:
Taxes on defined benefit plans' net gain (loss) during period	$ 61	$ 19	$ 51
Convertible Senior Notes Due 2011 [Member]
Debt Instrument [Line Items]
Convertible senior notes due 2011 interest rate percentage (in hundreths)		7.00%

Tax effect on the accumulated change in the value of either the projected benefit obligation or plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost.

+ References+ Details