Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies Earnings Attributable to Shareholders (Details)

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Summary of Significant Accounting Policies Earnings Attributable to Shareholders (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Net earnings (loss) attributable to Liberty Media Corporation shareholders $ 1,414 $ 836 $ 1,000