CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical) - shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY
Common stock issued under employee plans (in shares)	3,372,586	3,370,992
Purchases of treasury stock under employee plans (in shares)	960,186	787,805
Sales of treasury stock under employee plans (in shares)	363,335	336,480
Other treasury shares purchased, not retired (in shares)	22,851,760	17,793,841