Consolidated Statements of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2014		Mar. 31, 2013
Revenues	$ 653		$ 675		$ 1,468		$ 1,444
Costs and expenses:
Cost of revenues	(319)		(327)		(760)		(734)
Selling, general and administrative expenses	(273)	[1]	(244)	[1]	(566)	[1]	(507)	[1]
Amortization of intangible assets	(66)		(47)		(132)		(95)
Total costs and expenses	(658)		(618)		(1,458)		(1,336)
Operating (loss) income	(5)		57		10		108
Loss on extinguishment of debt							(83)
Interest expense, net	(54)		(49)		(109)		(102)
Other expense, net	(3)		(4)		(7)		(9)
(Loss) income before income taxes	(62)		4		(106)		(86)
Income tax benefit	3				11		11
Net (loss) income	(59)		4		(95)		(75)
Less: income attributable to noncontrolling interest	(1)		(2)		(2)		(3)
Net (loss) income attributable to Warner Music Group Corp.	$ (60)		$ 2		$ (97)		$ (78)

[1] (a) Includes depreciation expense of:$(13)$(12)$(25)$(25)