Cash Flow Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash paid (received) during the period for:
Interest		$ 163.0	$ 162.3	$ 155.9
Less amount capitalized		38.5	36.1	34.0
Cash interest, net		124.5	126.2	121.9
Income taxes		(65.4)	193.3	113.2
Increase (decrease) in capital expenditures incurred but not yet paid		43.7	(21.9)	$ 29.3
Accrued dividends declared but not yet paid		96.3
Non-cash portion of the increase in equity method investements	$ 120.0
Depreciation		703.8	732.2
Amortization of Intangible Assets		$ 7.4	$ 7.6