XML 73 R59.htm IDEA: XBRL DOCUMENT v3.6.0.2
Inventories (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]            
Raw materials and supplies   $ 216.0   $ 149.6 $ 216.0  
Work-in-process   990.3   837.9 990.3  
Finished goods   184.1   161.7 184.1  
Total inventories at current cost   1,390.4   1,149.2 1,390.4  
Adjustment from current cost to LIFO cost basis   (136.4)   (97.3) (136.4)  
Inventory valuation reserves   206.3   169.0 206.3  
Progress payments   (48.9)   (40.5) (48.9)  
Total inventories, net   1,271.6   1,037.0 1,271.6  
LIFO Inventory Amount   992.0   736.3 992.0  
Inventory, LIFO Reserve, Effect on Income, Net [Abstract]            
LIFO benefit (charge)       (39.1) 131.6 $ (24.7)
NRV benefit (charge)   $ (51.2) $ (76.0) 39.9 (131.5) 25.0
Net cost of sale impact       0.8 0.1 0.3
Effect of LIFO liquidation on income       (61.5) (9.6) 0.0
Industrial titanium products [Member] | Inventory Valuation Reserve [Member]            
Inventory, LIFO Reserve, Effect on Income, Net [Abstract]            
Inventory valuation charges       17.7 24.5 $ 23.2
Titanium Sponge Inventory [Member] | Inventory Valuation Reserve [Member]            
Inventory, LIFO Reserve, Effect on Income, Net [Abstract]            
Inventory valuation charges $ 11.3     $ 11.3    
Non-PQ grade titanium sponge [Member] | Inventory Valuation Reserve [Member]            
Inventory, LIFO Reserve, Effect on Income, Net [Abstract]            
Inventory valuation charges         $ 25.4