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	3 Months Ended
Long-Term Debt - Narrative (Details)	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 ($) $ / shares shares	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Nov. 08, 2016 USD ($)	Oct. 17, 2013 USD ($)
Debt Instrument [Line Items]
Long-term Debt								$ 14,113,000,000	$ 14,113,000,000		$ 13,954,000,000
Debt, Current								36,000,000	36,000,000		768,000,000
Borrowings of debt									1,317,000,000	$ 1,844,000,000
Repayments of Long-term Debt									$ 1,154,000,000	1,154,000,000
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								$ 1,385,000,000	$ 1,385,000,000
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%				1.375%
Debt instrument interest rate								1.375%	1.375%				1.375%
1.35 Billion Margin Loan Due 2020
Debt Instrument [Line Items]
Effective interest rate								4.33%	4.33%
Margin loan \| shares								1,350,000,000	1,350,000,000
1.35 Billion Margin Loan Due 2020 \| Term Loan
Debt Instrument [Line Items]
Debt face amount								$ 250,000,000	$ 250,000,000
1.35 Billion Margin Loan Due 2020 \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt face amount								500,000,000	500,000,000
Line of Credit Facility, Remaining Borrowing Capacity								600,000,000	600,000,000
1.35 Billion Margin Loan Due 2020 \| Delayed Draw Term Loan
Debt Instrument [Line Items]
Debt face amount								$ 600,000,000	$ 600,000,000
Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate								3.49%	3.49%
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 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								3.59%	3.59%
Debt instrument, unused borrowing capacity, fee, percent		0.60%
Line of Credit Facility, Remaining Borrowing Capacity								$ 150,000,000	$ 150,000,000
Line of Credit Facility, Maximum Borrowing Capacity												$ 500,000,000
Viacom, Inc. \| Live Nation Margin Loan
Debt Instrument [Line Items]
Share value								$ 57,000,000	$ 57,000,000
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	1,000,000,000
Share value								$ 6,240,000,000	$ 6,240,000,000
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
Live Nation \| Live Nation Margin Loan
Debt Instrument [Line Items]
Shares Pledged As Collateral Under Loan \| shares								53,700,000	53,700,000
Share value								$ 2,265,000,000	$ 2,265,000,000
Time Warner, Inc. \| 2.25% Exchangeable Senior Debentures due 2046
Debt Instrument [Line Items]
Shares underlying the debentures \| shares					4,250,000
Time Warner, Inc. \| 2.25% Exchangeable Senior Debentures due 2046 \| Senior Notes
Debt Instrument [Line Items]
Exchange Price of Shares Attributable to Debentures \| $ / shares					$ 104.55
SIRIUS XM \| Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 1,750,000,000	$ 1,750,000,000
Delta Topco \| Liberty 1% Cash Convertible Notes Due 2023
Debt Instrument [Line Items]
Consideration payable			$ 400,000,000
Common Class A \| 1.375% Convertible Notes Bond Hedge Transaction
Debt Instrument [Line Items]
Securities Basket price per share \| $ / shares								$ 50.89	$ 50.89
Common Class A \| Warrant transaction
Debt Instrument [Line Items]
Securities Basket price per share \| $ / shares								$ 50.89	$ 50.89
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								$ 7,956,000,000	$ 7,956,000,000		7,496,000,000
Debt, Current								5,000,000	5,000,000
Borrowings of debt									1,021,000,000	330,000,000
Repayments of Long-term Debt									569,000,000	194,000,000
Liberty Sirius XM Group \| Sirius XM Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Long-term Debt								365,000,000	365,000,000		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								599,000,000	599,000,000		662,000,000
Debt, Current								31,000,000	31,000,000
Borrowings of debt									7,000,000	114,000,000
Repayments of Long-term Debt									89,000,000	32,000,000
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								$ 5,558,000,000	5,558,000,000		$ 5,796,000,000
Borrowings of debt									289,000,000	1,400,000,000
Repayments of Long-term Debt									$ 496,000,000	$ 928,000,000
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