Commitments And Contingencies (Details) € in Millions |
1 Months Ended | 3 Months Ended | 6 Months Ended | 20 Months Ended | 30 Months Ended | 38 Months Ended | ||
|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2015
USD ($)
lawsuit
|
Jun. 30, 2015
USD ($)
lawsuit
|
Jun. 30, 2015
USD ($)
lawsuit
|
Mar. 31, 2015
USD ($)
lawsuit
|
Dec. 31, 2017
USD ($)
|
Mar. 31, 2015
USD ($)
lawsuit
|
Jan. 17, 2013
EUR (€)
|
Jun. 25, 2012
EUR (€)
|
|
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Litigation Settlement, Expense | Ìý | $ 108,000,000 | $ 108,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Compensation guarantee aggregate total | $ 343,000,000 | 343,000,000 | 343,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amounts payable under guarantee in 2015 | 64,000,000 | 64,000,000 | 64,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amounts payable under guarantee in 2016 | 59,000,000 | 59,000,000 | 59,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amounts payable under guarantee in 2017 | 61,000,000 | 61,000,000 | 61,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amounts payable under guarantee in 2018 | 54,000,000 | 54,000,000 | 54,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amount payable under guarantee, thereafter | 105,000,000 | 105,000,000 | 105,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Capitol Records Case [Member] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingency Accrual, at Carrying Value | 210,000,000 | 210,000,000 | 210,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Litigation Settlement, Amount | $ 210,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Percentage of pre-1972 recordings owned or controlled by the plaintiffs | 80.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Litigation Settlement, Expense | Ìý | 108,000,000 | 108,000,000 | Ìý | $ 102,000,000 | Ìý | Ìý | Ìý |
| Loss Contingency Accrual, at Carrying Value | $ 210,000,000 | 210,000,000 | 210,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingency, Accrual, Current | 39,000,000 | 39,000,000 | 39,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingency, Accrual, Noncurrent | $ 63,000,000 | $ 63,000,000 | $ 63,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Pending Litigation | Vivendi Universal SA Suit [Member] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Gain Contingency, Unrecorded Amount | € | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | € 765 |
| Pending Litigation | Use And Pulic Performance Of Sounds Recorded Prior to February 15, 1972 Lawsuit | SIRIUS XM | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of class action lawsuits | lawsuit | Ìý | Ìý | Ìý | 3 | Ìý | 3 | Ìý | Ìý |
| Number of suits filed | lawsuit | 1 | 1 | 1 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Damages sought | Ìý | Ìý | Ìý | $ 100,000,000 | Ìý | Ìý | Ìý | Ìý |
| Pending Litigation | Telephone Consumer Protection Act Of 1991 Lawsuit [Member] | SIRIUS XM | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of class action lawsuits | lawsuit | Ìý | Ìý | Ìý | 5 | Ìý | 5 | Ìý | Ìý |
| Statutory damages per violation sought | Ìý | Ìý | Ìý | Ìý | Ìý | $ 500 | Ìý | Ìý |
| Treble damages sought per knowing violation | Ìý | Ìý | Ìý | Ìý | Ìý | $ 1,500 | Ìý | Ìý |
| Including prejudgement interest [Member] | Pending Litigation | Vivendi Universal SA Suit [Member] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Gain Contingency, Unrecorded Amount | € | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | € 945 | Ìý |
| Minimum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Damages sought | Ìý | Ìý | Ìý | $ 50,000,000 | Ìý | Ìý | Ìý | Ìý |
| Maximum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loss Contingencies [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Damages sought | Ìý | Ìý | Ìý | $ 100,000,000 | Ìý | Ìý | Ìý | Ìý |