Annual report pursuant to Section 13 and 15(d)

NEW ACCOUNTING STANDARDS NEW ACCOUNTING STANDARDS (Schedule of Net Periodic Cost of Defined Benefit Pension and Other Postretirement Employee Benefit Plans) (Details)

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NEW ACCOUNTING STANDARDS NEW ACCOUNTING STANDARDS (Schedule of Net Periodic Cost of Defined Benefit Pension and Other Postretirement Employee Benefit Plans) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of Goods and Services Sold $ 1,522.8 $ 1,398.4 $ 1,274.4
Selling, General and Administrative Expense 116.8 102.9 115.8
Miscellaneous - net (19.6) 25.5 (33.6)
Operating Income (Loss) 673.2 390.2 130.7
Other non-operating income 17.2 10.2 7.3
Net income $ 1,128.1 363.1 199.3
Previously Reported [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of Goods and Services Sold   1,400.7 1,278.7
Selling, General and Administrative Expense   95.1 106.3
Miscellaneous - net   27.0 (32.0)
Operating Income (Loss)   397.2 137.5
Other non-operating income   3.2 0.5
Net income   363.1 199.3
Accounting Standards Update 2017-07 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of Goods and Services Sold   2.3 4.3
Selling, General and Administrative Expense   (7.8) (9.5)
Miscellaneous - net   (1.5) (1.6)
Operating Income (Loss)   (7.0) (6.8)
Other non-operating income   7.0 6.8
Net income   $ 0.0 $ 0.0