Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 581.6	$ 691.3
Cost of sales	500.8	514.5
Gross Profit	80.8	176.8
Selling, general and administrative expenses	56.7	50.6
(Gain) loss on sale or impairment of long lived assets, net	0.5	(0.6)
Other Operating Charges And Credits, Net	1.9	(0.4)
Income from operations	21.7	127.2
Non-operating income (expense):
Interest expense, net of capitalized interest	(3.8)	(4.4)
Investment income	4.7	3.2
Other non-operating items	11.0	(1.4)
Total non-operating income (expense)	11.9	(2.6)
Income from continuing operations before taxes	33.6	124.6
Provision for income taxes	7.2	29.7
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	26.4	94.9
Income from continuing operations	26.8	95.0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0.0	(4.0)
Loss from discontinued operations before taxes	(0.1)	(5.3)
Benefit for income taxes	0.0	(1.3)
Loss from discontinued operations	(0.1)	(4.0)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	26.3	90.9
Net income	26.7	90.9
Net loss attributable to redeemable noncontrolling interest	$ (0.4)	$ 0.0
Net income per share of common stock:
Income per share continuing operations	$ 0.20	$ 0.66
Loss per share discontinued operations	0.00	0.0
Net income per share - basic	0.20	0.63
Diluted net income per share of common stock
Income per share continuing operations	0.20	0.65
Loss per share discontinued operations	0.00	(0.03)
Net income per share - diluted	$ 0.20	$ 0.62
Basic	130.5	144.7
Weighted average shares of stock outstanding - diluted	131.5	146.7