Annual report pursuant to Section 13 and 15(d)

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

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Summary of Significant Accounting Policies - Stock-Based Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Jul. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation $ 291 $ 192 $ 230    
Additional paid-in capital 2,575 2,984      
Retained earnings 13,748 13,644   $ 13,642  
Noncontrolling interests in equity of subsidiaries 5,630 5,103      
Accounts payable and accrued liabilities 1,621 1,116      
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 30 28 27    
Customer service and billing          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation 4 4 4    
Other          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation 9 5 5    
Other Operating Expense          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation 49 17 16    
Selling, general and administrative          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation $ 199 $ 138 $ 178