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Component: (Network and Table)
Network
2417402 - Disclosure - Asset Retirement Obligations -Changes in Carrying Values of Asset Retirement Obligations (Detail)
(http://www.ussteel.com/role/AssetRetirementObligationsChangesInCarryingValuesOfAssetRetirementObligationsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001163302 (http://www.sec.gov/CIK)
Asset Retirement Obligation Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Asset Retirement Obligation Disclosure [Abstract]
 
 
Asset Retirement Obligations [Roll Forward]
 
 
Balance at beginning of year
89,000,000  
48,000,000  
Additional obligations incurred
2,000,000  
45,000,000  
Obligations settled
(15,000,000) 
(6,000,000) 
Foreign currency translation effects
0  
(1,000,000) 
Accretion expense
3,000,000  
3,000,000  
Balance at end of period
79,000,000  
 
89,000,000