Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Details)

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Commitments And Contingencies (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 06, 2018
Jun. 30, 2018
Jun. 30, 2018
Loss Contingencies [Line Items]      
Legal settlement, net   $ 69 $ 69
Compensation guarantee aggregate total   225 225
Amounts payable under guarantee in 2018   112 112
Amounts payable under guarantee in 2019   45 45
Amounts payable under guarantee in 2020   32 32
Amounts payable under guarantee in 2021   34 34
Amount payable under guarantee, thereafter   $ 2 $ 2
Settled Litigation | Sound exchange Lawsuit | SIRIUS XM      
Loss Contingencies [Line Items]      
Payments for Legal Settlements $ 150