CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	1 Months Ended				12 Months Ended
	Feb. 28, 2017	Jul. 31, 2016	Feb. 28, 2015	Feb. 28, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF EQUITY
Cash dividends per share (in dollars per share)	$ 0.45	$ 0.425	$ 0.40	$ 0.35	$ 1.65	$ 1.60	$ 1.40