Liberty Media Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Narrative (Details)

Long-Term Debt - Narrative (Details)									1 Months Ended	6 Months Ended
Long-Term Debt - Narrative (Details)	Jun. 22, 2018 USD ($)	Mar. 06, 2018 USD ($) $ / shares shares	Dec. 12, 2017	Jan. 23, 2017 USD ($) $ / shares	Jan. 20, 2017 USD ($)	Aug. 17, 2016 USD ($) $ / shares shares	Jun. 16, 2016 shares	Apr. 15, 2016 $ / shares shares	Mar. 31, 2018 USD ($)	Jun. 30, 2018 USD ($) $ / shares shares	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Nov. 08, 2016 USD ($)	Oct. 17, 2013 USD ($)
Debt Instrument [Line Items]
Long-term Debt										$ 13,270,000,000		$ 13,954,000,000
Debt, Current										18,000,000		768,000,000
Borrowings of debt										1,583,000,000	$ 2,597,000,000
Repayments of Long-term Debt										$ 2,418,000,000	1,791,000,000
1.375% Cash Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Debt face amount														$ 1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage										1.375%				1.375%
Debt instrument interest rate										1.375%				1.375%
1.35 Billion Margin Loan Due 2020
Debt Instrument [Line Items]
Debt face amount										$ 1,350,000,000
Effective interest rate										4.38%
1.35 Billion Margin Loan Due 2020 \| Term Loan
Debt Instrument [Line Items]
Debt face amount									$ 250,000,000
1.35 Billion Margin Loan Due 2020 \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt face amount									500,000,000
Line of Credit Facility, Remaining Borrowing Capacity										$ 900,000,000
1.35 Billion Margin Loan Due 2020 \| Delayed Draw Term Loan
Debt Instrument [Line Items]
Debt face amount									$ 600,000,000
2.25% Exchangeable Senior Debentures due 2046 \| Senior Notes
Debt Instrument [Line Items]
Debt face amount						$ 445,000,000
Debt Instrument, Interest Rate, Stated Percentage						2.25%
Debt instrument, face amount per debenture	$ 1,000
Extraordinary additional distribution	229,000,000
Extraordinary additional distribution amount per debenture	$ 514.1295
Debt instrument interest rate						2.25%
Liberty 1% Cash Convertible Notes Due 2023
Debt Instrument [Line Items]
Debt face amount				$ 450,000,000
Debt Instrument, Interest Rate, Stated Percentage				1.00%
Debt instrument, face amount per debenture				$ 1,000
Borrowings of debt				$ 450,000,000
Debt instrument interest rate				1.00%
2.125% Exchangeable Senior Debentures due 2048
Debt Instrument [Line Items]
Debt face amount		$ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage		2.125%
Debt instrument interest rate		2.125%
Live Nation Margin Loan
Debt Instrument [Line Items]
Debt face amount													$ 500,000,000
Borrowings of debt					$ 350,000,000
Debt Instrument, Basis Spread on Variable Rate			1.90%
Effective interest rate										4.20%
Debt instrument, unused borrowing capacity, fee, percent			0.60%
Line of Credit Facility, Remaining Borrowing Capacity										$ 150,000,000
Line of Credit Facility, Maximum Borrowing Capacity													$ 500,000,000
SIRIUS XM \| Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, unused borrowing capacity, fee, percent										0.25%
Line of Credit Facility, Remaining Borrowing Capacity										$ 1,750,000,000
SIRIUS XM \| 1.35 Billion Margin Loan Due 2020
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate									2.05%
Debt instrument, unused borrowing capacity, fee, percent									0.75%
Shares Pledged As Collateral Under Loan \| shares										1,000,000,000
Share value										$ 6,770,000,000
SIRIUS XM \| 2.125% Exchangeable Senior Debentures due 2048
Debt Instrument [Line Items]
Shares underlying the debentures \| shares		49,900,000
conversion price for exchangeable debt \| $ / shares		$ 8.02
Debt Instrument, Redemption Price, Percentage		100.00%
Other \| Live Nation Margin Loan
Debt Instrument [Line Items]
Share value										$ 56,000,000
Live Nation \| Live Nation Margin Loan
Debt Instrument [Line Items]
Shares Pledged As Collateral Under Loan \| shares										53,700,000
Share value										$ 2,610,000,000
AT&T \| 2.25% Exchangeable Senior Debentures due 2046
Debt Instrument [Line Items]
Shares underlying the debentures \| shares						6,110,000
Debt Instrument, Redemption Price, Percentage						100.00%
AT&T \| 2.25% Exchangeable Senior Debentures due 2046 \| Senior Notes
Debt Instrument [Line Items]
Exchange Price of Shares Attributable to Debentures \| $ / shares						$ 35.35
SIRIUS XM \| Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity										$ 1,750,000,000
Delta Topco \| Liberty 1% Cash Convertible Notes Due 2023
Debt Instrument [Line Items]
Consideration payable				$ 400,000,000
Warrant transaction
Debt Instrument [Line Items]
Warrant expiration period										81 days
Common Class A \| 1.375% Convertible Notes Bond Hedge Transaction
Debt Instrument [Line Items]
Securities Basket price per share \| $ / shares										$ 56.67
Common Class A \| Warrant transaction
Debt Instrument [Line Items]
Securities Basket price per share \| $ / shares										$ 56.67
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares								$ 61.16
Liberty Sirius XM Group
Debt Instrument [Line Items]
Long-term Debt										$ 7,292,000,000		7,496,000,000
Debt, Current										4,000,000
Borrowings of debt										1,171,000,000	980,000,000
Repayments of Long-term Debt										1,388,000,000	376,000,000
Liberty Sirius XM Group \| Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Long-term Debt												300,000,000
Liberty Sirius XM Group \| Common Class A
Debt Instrument [Line Items]
Securities basket conversion ratio from shares of Liberty Media Corporation common stock								1.0
Liberty Sirius XM Group \| Common Class A \| 1.375% Convertible Notes Bond Hedge Transaction
Debt Instrument [Line Items]
Forward contract, number of underlying shares \| shares								21,085,900
Liberty Sirius XM Group \| Common Class A \| Warrant transaction
Debt Instrument [Line Items]
Class of Warrant or Right, Outstanding \| shares								21,085,900
Braves Group
Debt Instrument [Line Items]
Long-term Debt										625,000,000		662,000,000
Debt, Current										14,000,000
Borrowings of debt										123,000,000	214,000,000
Repayments of Long-term Debt										180,000,000	42,000,000
Braves Group \| Common Class A
Debt Instrument [Line Items]
Securities basket conversion ratio from shares of Liberty Media Corporation common stock							0.1087	0.10
Braves Group \| Common Class A \| 1.375% Convertible Notes Bond Hedge Transaction
Debt Instrument [Line Items]
Forward contract, number of underlying shares \| shares							2,292,037	2,108,590
Braves Group \| Common Class A \| Warrant transaction
Debt Instrument [Line Items]
Class of Warrant or Right, Outstanding \| shares							2,292,037	2,108,590
Formula One Group
Debt Instrument [Line Items]
Long-term Debt										5,353,000,000		$ 5,796,000,000
Borrowings of debt										289,000,000	1,403,000,000
Repayments of Long-term Debt										$ 850,000,000	$ 1,373,000,000
Consideration payable				$ 400,000,000
Formula One Group \| Common Class A
Debt Instrument [Line Items]
Securities basket conversion ratio from shares of Liberty Media Corporation common stock								0.25
Formula One Group \| Common Class A \| 1.375% Convertible Notes Bond Hedge Transaction
Debt Instrument [Line Items]
Forward contract, number of underlying shares \| shares								5,271,475
Formula One Group \| Common Class A \| Warrant transaction
Debt Instrument [Line Items]
Class of Warrant or Right, Outstanding \| shares								5,271,475
Formula One Group \| Common Class C \| Liberty 1% Cash Convertible Notes Due 2023
Debt Instrument [Line Items]
Debt Instrument, Convertible, Conversion Ratio				27.1091
conversion price for exchangeable debt \| $ / shares				$ 36.89