Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

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Stockholders' Equity (Narrative) (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Vote
shares
Dec. 31, 2022
shares
Dec. 31, 2021
USD ($)
shares
May 23, 2018
shares
Jun. 02, 2015
shares
Class of Stock [Line Items]          
Capital stock authorized for issuance       8,200,000,000 9,015,000,000
Common Stock, Capital Shares Reserved for Future Issuance 24,300,000     8,150,000,000 8,965,000,000
Preferred Stock, Capital Shares Reserved for Future Issuance       50,000,000  
Common Class A          
Class of Stock [Line Items]          
Number of votes | Vote 1        
Share received in exchange 1        
Common stock, shares authorized 4,000,000,000 4,000,000,000      
Common Stock, Shares, Issued 383,047,720 374,390,323      
Common Stock, Shares, Outstanding 383,047,720 374,390,323      
Common Stock, Capital Shares Reserved for Future Issuance       4,000,000,000  
Stock Repurchased and Retired During Period, Shares 0 0 41,153,205    
Stock Repurchased and Retired During Period, Value | $     $ 435    
Common Class A | Employee Stock Option [Member]          
Class of Stock [Line Items]          
Common Stock, Capital Shares Reserved for Future Issuance 23,500,000        
Common Class A | Liberty Ventures common stock          
Class of Stock [Line Items]          
Common Stock, Capital Shares Reserved for Future Issuance         400,000,000
Common Class B          
Class of Stock [Line Items]          
Number of votes | Vote 10        
Common stock, shares authorized 150,000,000 150,000,000      
Common Stock, Shares, Issued 8,700,380 8,373,512      
Common Stock, Shares, Outstanding 8,700,380 8,373,512      
Common Stock, Capital Shares Reserved for Future Issuance       150,000,000  
Common Class B | Employee Stock Option [Member]          
Class of Stock [Line Items]          
Common Stock, Capital Shares Reserved for Future Issuance 700,000        
Common Class B | Liberty Ventures common stock          
Class of Stock [Line Items]          
Common Stock, Capital Shares Reserved for Future Issuance         15,000,000
Common Class C          
Class of Stock [Line Items]          
Common stock, shares authorized 4,000,000,000        
Common Stock, Shares, Issued 0        
Common Stock, Shares, Outstanding 0        
Common Stock, Capital Shares Reserved for Future Issuance       4,000,000,000  
Common Class C | Liberty Ventures common stock          
Class of Stock [Line Items]          
Common Stock, Capital Shares Reserved for Future Issuance         400,000,000