Consolidated and Combined Balance Sheets (Parenthetical) (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 47.8	$ 45.6
Preferred stock authorized (in dollars per shares)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	15,000,000	100
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Common stock authorized (in dollars per shares)	$ 0.01	$ 0.01
Common stock authorized (in shares)	2,000,000,000.0	100
Common Stock, Shares, Issued	346,000,000	100
Common stock outstanding (in shares)	345,900,000	100