Condensed Statements of Operations - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Income Statement [Abstract]        
Sales $ 1,728.4 $ 1,526.5 $ 3,438.7 $ 3,093.6
Operating expenses:        
Cost of goods sold 1,460.7 1,407.9 2,989.4 2,805.4
Selling and administration 110.3 84.8 210.8 177.7
Restructuring charges 6.4 8.5 10.4 16.7
Acquisition-related costs 0.3 4.4 0.6 11.4
Other operating income (expense) 0.0 0.3 8.1 (0.1)
Operating income 150.7 21.2 235.6 82.3
Earnings (losses) of non-consolidated affiliates (21.1) 0.5 (20.6) 1.0
Interest expense 61.1 52.5 124.8 104.9
Interest income 0.4 0.4 0.8 0.6
Non-operating pension income 5.4 8.6 10.8 17.1
Income (loss) before taxes 74.3 (21.8) 101.8 (3.9)
Income tax provision (benefit) 15.7 (15.9) 22.3 (11.4)
Net income (loss) $ 58.6 $ (5.9) $ 79.5 $ 7.5
Net income (loss) per common share:        
Basic $ 0.35 $ (0.04) $ 0.48 $ 0.05
Diluted 0.35 (0.04) 0.47 0.04
Dividends per common share $ 0.20 $ 0.20 $ 0.40 $ 0.40
Average common shares outstanding:        
Basic 167.1 166.1 167.1 165.8
Diluted 168.8 166.1 169.1 168.0