Rendering

Component: (Network and Table)
Network
2431402 - Disclosure - Debt (Details)
(http://www.mt.com/role/DebtDetails)
TableSchedule of Long-term Debt Instruments [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001037646 (http://www.sec.gov/CIK)
Debt InstrumentPeriod [Axis]
2016-01-01 - 2016-12-31
2015-12-31
Debt Instrument [Axis]Debt Instrument [Axis]
3.67% Senior Notes4.10% Senior Notes [Member]3.84% Senior Notes [Member]4.24% Senior Notes [Member]1.47% EURO Senior Notes [Member]$800 Million 2015 Credit AgreementDebt Instrument, Name [Domain]3.67% Senior Notes4.10% Senior Notes [Member]3.84% Senior Notes [Member]4.24% Senior Notes [Member]1.47% EURO Senior Notes [Member]$800 Million 2015 Credit AgreementDebt Instrument, Name [Domain]
UnitUnitUnitUnitUnitUnitUnitUnitUnitUnitUnitUnitUnitUnit
USDPureUSDPureUSDPureUSDPureEURUSDPureUSDUSDUSDUSDUSDUSDUSDUSDUSD
Senior Notes, Stated Interest Rate
  
3.67%  
  
4.10%  
  
3.84%  
  
4.24%  
   
1.47%  
          
Maturity Date
2022-12-17  
  
2023-09-19  
  
2024-09-19  
  
2025-06-25  
   
2030-06-17  
  
2020-12-17  
         
Credit Agreement Borrowing Capacity
                 
800,000,000  
        
Senior Notes
 
50,000,000  
  
50,000,000  
  
125,000,000  
  
125,000,000  
 
125,000,000  
 
131,507,000  
   
479,865,000  
50,000,000  
50,000,000  
125,000,000  
125,000,000  
136,575,000  
 
484,729,000  
Debt issuance costs, net
                  
(1,642,000) 
      
(1,846,000) 
$800 million Credit Agreement, interest at LIBOR plus 87.5 basis points
                 
395,191,000  
      
90,409,000  
 
Other Borrowings
                  
18,974,000  
      
14,488,000  
Total debt
                  
894,030,000  
      
589,626,000  
Less: current portion
                  
(18,974,000) 
      
(14,488,000) 
Long-term debt
                  
875,056,000  
      
575,138,000