Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Schedule Of Inventories) (Details)

v3.19.2
INVENTORIES (Schedule Of Inventories) (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Dec. 31, 2018
Inventory, Net [Abstract]    
Mining and Pelletizing $ 186.2 $ 77.8
Metallics 32.8 10.1
Total 219.0 87.9
Operating Segments [Member] | Metallics    
Inventory, Net [Abstract]    
Mining and Pelletizing 0.0 0.0
Metallics 4.0 0.0
Total 4.0 0.0
Intersegment Eliminations [Member]    
Inventory, Net [Abstract]    
Mining and Pelletizing 0.0 0.0
Metallics (1.6) 0.0
Total (1.6) 0.0
Intersegment Eliminations [Member] | Mining and Pelletizing [Member]    
Inventory, Net [Abstract]    
Mining and Pelletizing 186.2 77.8
Metallics 30.4 10.1
Total $ 216.6 $ 87.9