v3.23.1
Cover
Apr. 28, 2023
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Apr. 28, 2023
Entity Registrant Name United States Steel Corp
Entity Central Index Key 0001163302
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 1-16811
Entity Tax Identification Number 25-1897152
Entity Address, Address Line One 600 Grant Street
Entity Address, City or Town Pittsburgh
Entity Address, State or Province PA
Entity Address, Postal Zip Code 15219-2800
City Area Code 412
Local Phone Number 433-1121
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
New York Stock Exchange  
Entity Information [Line Items]  
Title of 12(b) Security Common Stock
Trading Symbol X
Security Exchange Name NYSE
Chicago Stock Exchange  
Entity Information [Line Items]  
Title of 12(b) Security Common Stock
Trading Symbol X
Security Exchange Name CHX