Net Earnings Per Share Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Jul. 01, 2016	Nov. 10, 2015
Common stock outstanding (in shares)	347,000,000	347,000,000	345,900,000	345,200,000	0
Common Stock, Dividends, Per Share, Cash Paid	$ 0.07
Retained Earnings
Dividends, Common Stock, Cash		$ 48.6