CONSOLIDATED SHARE OWNERS' EQUITY (Parenthetical) - shares shares in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED SHARE OWNERS' EQUITY
Issuance of common stock (in shares)	0.3	0.2	0.3
Reissuance of common stock (in shares)	0.1	0.3	0.2
Treasury shares purchased (in shares)		4.1	1.1