Condensed Consolidated Statements of Equity (Unaudited) - Parenthetical - $ / shares	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (in dollars per share)	$ 0.82	$ 0.71
Share repurchases (in shares)	275,000	210,000