Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Stock-Based Compensation (Details)

v3.20.4
Summary of Significant Accounting Policies - Stock-Based Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Jul. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation $ 261 $ 291 $ 192  
Additional paid-in capital 2,688 2,575    
Retained earnings 12,320 13,748    
Noncontrolling interests in equity of subsidiaries 4,510 5,630    
Accounts payable and accrued liabilities 1,583 1,621    
Sirius XM Holdings | ASU 2018-07 | Early Adoption        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Additional paid-in capital       $ 22
Retained earnings       (3)
Noncontrolling interests in equity of subsidiaries       7
Accounts payable and accrued liabilities       $ (26)
Programming and content        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation 32 30 28  
Customer service and billing        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation 6 4 4  
Other        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation 6 9 5  
Other Operating Expense        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation 43 49 17  
Selling, general and administrative        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Stock-based compensation $ 174 $ 199 $ 138