Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.62	$ 0.56
Dividend equivalents declared per share (in dollars per share)	$ 0.62	$ 0.56