Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.4.0.6
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 1,500 1,500
Common stock, shares issued 716 706
Common stock, shares outstanding 707 698
Treasury stock, shares 9 9