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

Information About Liberty's Operating Segments - Revenue and Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,009	$ 2,315	$ 2,199	$ 1,517	$ 1,994	$ 2,065	$ 2,140	$ 1,395	$ 8,040	$ 7,594	$ 5,276
Long-Lived Assets	2,469				2,541				2,469	2,541
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									6,209	5,724	5,230
Long-Lived Assets	2,457				2,529				2,457	2,529
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									1,831	1,783
Long-Lived Assets	$ 12				$ 12				$ 12	12
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue										$ 87	$ 46