CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY
Common stock issued under employee plans (in shares)	3,726,163	5,688,794
Purchases of treasury stock under employee plans (in shares)	629,550	864,073
Sales of treasury stock under employee plans (in shares)	648,990	1,021,123
Other treasury shares purchased, not retired (in shares)	12,318,883	15,544,014