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Cover - shares
 6 Months Ended
Jun. 30, 2025
Jul. 25, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-34177  
Entity Registrant Name Warner Bros. Discovery, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 35-2333914  
Entity Address, Address Line One 230 Park Avenue South  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10003  
City Area Code 212  
Local Phone Number 548-5555  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   2,475,772,282
Entity Central Index Key 0001437107  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Series A Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Series A Common Stock  
Trading Symbol WBD  
Security Exchange Name NASDAQ  
4.302% Senior Notes due 2030    
Document Information [Line Items]    
Title of 12(b) Security 4.302% Senior Notes due 2030  
Trading Symbol WBDI30  
Security Exchange Name NASDAQ  
4.302% Senior Notes due 2030    
Document Information [Line Items]    
Title of 12(b) Security 4.302% Senior Notes due 2030  
Trading Symbol WBDI30A  
Security Exchange Name NASDAQ  
4.693% Senior Notes due 2033    
Document Information [Line Items]    
Title of 12(b) Security 4.693% Senior Notes due 2033  
Trading Symbol WBDI33  
Security Exchange Name NASDAQ  
4.693% Senior Notes due 2033    
Document Information [Line Items]    
Title of 12(b) Security 4.693% Senior Notes due 2033  
Trading Symbol WBDI33A  
Security Exchange Name NASDAQ