CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY
Common stock issued under employee plans (in shares)	5,688,794	7,388,468
Purchases of treasury stock under employee plans (in shares)	864,073	528,947
Sales of treasury stock under employee plans (in shares)	1,021,123	1,813,043
Other treasury shares purchased, not retired (in shares)	15,544,014	25,465,909