Liberty Media Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Sirius XM Transactions (Details)

Sirius XM Transactions (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended			1 Months Ended	0 Months Ended			15 Months Ended	1 Months Ended
Sirius XM Transactions (Details) (USD $)	Oct. 31, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 18, 2013	Nov. 04, 2013	Apr. 25, 2014	Nov. 14, 2013	Dec. 31, 2014 tranche	Aug. 31, 2014	May 31, 2014	Oct. 31, 2014
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				$ (10,372,000,000)
Preferred Stock, Par or Stated Value Per Share			$ 0.01	$ 0.01						$ 0.01
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		7,500,000,000
Goodwill			14,345,000,000us-gaap_Goodwill	14,365,000,000us-gaap_Goodwill	200,000,000us-gaap_Goodwill					14,345,000,000us-gaap_Goodwill
Goodwill, Acquired During Period				14,165,000,000us-gaap_GoodwillAcquiredDuringPeriod
Stock Repurchased and Retired During Period, Shares			0
Payments for Repurchase of Common Stock				140,000,000	323,000,000
Shares retired	6,300,000us-gaap_TreasuryStockSharesRetired
SIRIUS XM
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net						10,372,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets						253,000,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		7,500,000,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value		10,215,000,000
Initial noncontrolling interest		10,286,000,000
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value						10,841,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net						21,466,000,000
Business Acquisition, Purchase Price Allocation, Current Assets, Cash and Cash Equivalents						569,000,000
Business Acquisition, Purchase Price Allocation, Current Assets, Receivables						210,000,000
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment						1,714,000,000
Goodwill						13,775,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles						930,000,000
Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets						480,000,000
Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt						(2,490,000,000)
Business Acquisition, Purchase Price Allocation, Current Liabilities, Deferred Revenue						(1,565,000,000)
Business Acquisition, Purchase Price Allocation, Deferred Taxes Asset (Liability), Net, Noncurrent						(685,000,000)
Business Acquisition, Purchase Price Allocation, Other Liabilities						(1,002,000,000)
SIRIUS XM \| Maximum
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		50.00%
SIRIUS XM \| Pro Forma [Member]
Business Acquisition [Line Items]
Revenue					3,730,000,000
Operating income (loss)					686,000,000
Interest expense					(162,000,000)
Share of earnings (loss) of affiliates					(21,000,000)
Less earnings (loss) attributable to the noncontrolling interest					1,736,000,000
Net Earnings (loss) from continuing operatins attributable to Liberty stockholders					2,052,000,000
Pro Forma basic net earnings (loss) from continuing operations attributable to Liberty stockholders per common share (note 2)					$ 5.68
Pro Forma diluted net earnings (loss) from continuing operations attributable to Liberty stockholders per common share (note 2)					$ 5.52
SIRIUS XM
Business Acquisition [Line Items]
Purchase of shares in equity method investee		50,000,000				50,000,000
Preferred Stock, Par or Stated Value Per Share		$ 0.001
Convertible Preferred Stock, Shares Issued upon Conversion		1,293,509,076
Ownership percentage			56.00%
SIRIUS XM \| Minimum
Business Acquisition [Line Items]
Ownership percentage		50.00%
FCC licences [Member] \| SIRIUS XM
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable						8,600,000,000
Trade Names [Member] \| SIRIUS XM
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable						930,000,000
Deferred tax liability [Member] \| SIRIUS XM
Business Acquisition [Line Items]
Goodwill, Allocation Adjustment				227,000,000
Contract fair value [Member] \| SIRIUS XM
Business Acquisition [Line Items]
Goodwill, Allocation Adjustment				18,000,000
SIRIUS XM \| Agero [Member]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price				525,000,000
Goodwill, Acquired During Period							390,000,000
SIRIUS XM \| Sirius XM Liberty Repurchase Agreement [Member]
Business Acquisition [Line Items]
Stock Repurchased and Retired During Period, Shares									43,712,265	136,600,826
Payments for Repurchase of Common Stock								340,000,000		500,000,000
Number of tranches for stock repurchase										3
Treasury Stock Acquired, Average Cost Per Share										$ 3.6603
Share repurchases, discount from market price										1.50%
Shares Repurchased Discount From Market Measurement Period										10 days
Volume weighted average share price, cap			$ 4.18							$ 4.18
Volume weighted average share price, floor			$ 3.64							$ 3.64
Stock repurchased as a percentage of shares outstanding										2.00%
SIRIUS XM \| May Accelerated Share Repurchase Agreement [member]
Business Acquisition [Line Items]
Stock Repurchased and Retired During Period, Shares											39,346,125	112,500,000
Payments for Repurchase of Common Stock												600,000,000
Stock Repurchase Program, Authorized Amount												600,000,000
Share Repurchase Payment Adjustment											94,000,000
SIRIUS XM \| August Accelerated Share Repurchase Agreement [Member]
Business Acquisition [Line Items]
Stock Repurchased and Retired During Period, Shares											51,884,795		19,431,708
Payments for Repurchase of Common Stock											250,000,000
Stock Repurchase Program, Authorized Amount											250,000,000
OEM Relationship and Computer Software [Member] \| SIRIUS XM \| Agero [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles				$ 247,000,000
OEM relationship [Member] \| SIRIUS XM \| Agero [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							15 years
Computer Software, Intangible Asset [Member] \| SIRIUS XM \| Agero [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							10 years