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Summary of Significant Accounting Policies Change in Accounting Principle (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||||||||||
| Equity Method Investments | $ 3,299 | $ 3,341 | $ 3,299 | $ 3,341 | |||||||
| Deferred income tax liabilities | 2,312 | 817 | 2,312 | 817 | |||||||
| Income (Loss) from Equity Method Investments | 32 | (1,346) | (87) | ||||||||
| Income Tax Expense (Benefit) | (135) | 469 | 165 | ||||||||
| Net earnings (loss) attributable to Liberty Media Corporation shareholders | 552 | 76 | 93 | 8,059 | 106 | 221 | 937 | 150 | 8,780 | 1,414 | 836 |
| Series A and Series B Liberty Capital common stock | $ 4.84 | $ 0.64 | $ 0.78 | $ 67.72 | $ 0.88 | $ 1.86 | $ 7.87 | $ 1.24 | $ 74.41 | $ 11.78 | |
| Series A and Series B Liberty Capital common stock | $ 4.80 | $ 0.63 | $ 0.77 | $ 66.60 | $ 0.87 | $ 1.80 | $ 7.62 | $ 1.20 | $ 73.17 | $ 11.40 | |
| Retained earnings | 11,859 | 3,079 | 11,859 | 3,079 | |||||||
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Segment, Liberty Capital [Member]
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||||||||||
| Net earnings (loss) attributable to Liberty Media Corporation shareholders | 607 | ||||||||||
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Segment, Liberty Starz [Member]
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||||||||||
| Net earnings (loss) attributable to Liberty Media Corporation shareholders | $ 229 | ||||||||||
| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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