Warner Music (WMG) 10-Q 7 May 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2018	May 07, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	wmg
Entity Registrant Name	Warner Music Group Corp.
Entity Central Index Key	1,319,161
Current Fiscal Year End Date	--09-30
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,052

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2018	Sep. 30, 2017
Current assets:
Cash and equivalents	$ 612	$ 647
Redemption deposit	119
Accounts receivable, net of allowances of $49 million and $50 million	427	404
Inventories	39	39
Royalty advances expected to be recouped within one year	148	141
Prepaid and other current assets	62	44
Total current assets	1,407	1,275
Royalty advances expected to be recouped after one year	181	172
Property, plant and equipment, net	214	213
Goodwill	1,696	1,685
Intangible assets subject to amortization, net	2,037	2,090
Intangible assets not subject to amortization	118	117
Deferred tax assets, net	52	97
Other assets	77	69
Total assets	5,782	5,718
Current liabilities:
Accounts payable	203	208
Accrued royalties	1,358	1,263
Accrued liabilities	340	365
Accrued interest	27	41
Deferred revenue	197	197
Current portion of long-term debt	111
Other current liabilities	37	26
Total current liabilities	2,273	2,100
Long-term debt	2,836	2,811
Deferred tax liabilities, net	194	190
Other noncurrent liabilities	274	309
Total liabilities	5,577	5,410
Equity:
Common stock ($0.001 par value; 10,000 shares authorized; 1,052 shares issued and outstanding)	0	0
Additional paid-in capital	1,128	1,128
Accumulated deficit	(778)	(654)
Accumulated other comprehensive loss, net	(161)	(181)
Total Warner Music Group Corp. equity	189	293
Noncontrolling interest	16	15
Total equity	205	308
Total liabilities and equity	$ 5,782	$ 5,718

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2018	Sep. 30, 2017
Statement Of Financial Position [Abstract]
Accounts receivable, allowances	$ 49	$ 50
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	10,000	10,000
Common stock, shares issued	1,052	1,052
Common stock, shares outstanding	1,052	1,052

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
Income Statement [Abstract]
Revenue		$ 963	$ 825	$ 2,008
Costs and expenses:
Cost of revenue		(488)	(415)	(1,057)
Selling, general and administrative expenses	[1]	(337)	(282)	(670)
Amortization expense		(55)	(50)	(108)
Total costs and expenses		(880)	(747)	(1,835)
Operating income		83	78	173
Loss on extinguishment of debt		(23)		(24)
Interest expense, net		(36)	(36)	(72)
Other expense, net		(6)	(19)	(2)
Income before income taxes		18	23	75
Income tax expense		(19)	(3)	(71)
Net income (loss)		(1)	20	4
Less: Income attributable to noncontrolling interest		(2)	(1)	(3)
Net income (loss) attributable to Warner Music Group Corp.		$ (3)	$ 19	$ 1
[1]	(a) Includes depreciation expense of: $(14) $(13) $(26) $(25)

Consolidated Statements of Ope5

Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Depreciation expense	$ (14)	$ (13)	$ (26)	$ (25)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (1)	$ 20	$ 4	$ 44
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	9	45	24	30
Less: Income attributable to noncontrolling interest	(2)	(1)	(3)	(3)
Comprehensive income attributable to Warner Music Group Corp.	$ 7	$ 44	$ 21	$ 27

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net income	$ 4	$ 44
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	134	126
Unrealized losses (gains) and remeasurement of foreign denominated loans	11	(1)
Deferred income taxes	38	(12)
Loss on extinguishment of debt	24	32
Net (gain) loss on divestitures and investments	(7)	6
Non-cash interest expense	3	5
Equity-based compensation expense	27	17
Changes in operating assets and liabilities:
Accounts receivable	(15)	(41)
Inventories	1	3
Royalty advances	(12)	1
Accounts payable and accrued liabilities	(100)	(43)
Royalty payables	68	75
Accrued interest	(14)	7
Deferred revenue	(16)	(4)
Other balance sheet changes	(10)	11
Net cash provided by operating activities	136	226
Cash flows from investing activities
Acquisition of music publishing rights, net	(5)	(6)
Capital expenditures	(29)	(18)
Investments and acquisitions of businesses, net	(6)	(6)
Proceeds from the sale of investments	12	18
Net cash (used in) provided by investing activities	(28)	(12)
Cash flows from financing activities
Proceeds from supplement of Acquisition Corp. Senior Term Loan Facility	320	22
Call premiums paid on and redemption deposit for early redemption of debt	(23)	(27)
Deferred financing costs paid	(9)	(12)
Distribution to noncontrolling interest holder	(2)	(1)
Dividends paid	(125)	(54)
Net cash (used in) provided by financing activities	(149)	(93)
Effect of exchange rate changes on cash and equivalents	6	(4)
Net (decrease) increase in cash and equivalents	(35)	117
Cash and equivalents at beginning of period	647	359
Cash and equivalents at end of period	612	476
4.125% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp		380
4.875% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp		250
5.50% Senior Notes
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp	325
6.00% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes		(450)
6.25% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes		(173)
5.625% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes		$ (28)
6.75% Senior Notes
Cash flows from financing activities
Repayment of and redemption deposit for Acquisition Corp. 6.75% Senior Notes	$ (635)

Consolidated Statements of Cas8

Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)	Mar. 31, 2018	Mar. 31, 2017
4.125% Senior Secured Notes
Interest rate	4.125%	4.125%
4.875% Senior Secured Notes
Interest rate	4.875%	4.875%
5.50% Senior Notes
Interest rate	5.50%	5.50%
6.00% Senior Secured Notes
Interest rate	6.00%	6.00%
6.25% Senior Secured Notes
Interest rate	6.25%	6.25%
5.625% Senior Secured Notes
Interest rate	5.625%	5.625%
6.75% Senior Notes
Interest rate	6.75%	6.75%

Consolidated Statement of Equit

Consolidated Statement of Equity (Unaudited) - 6 months ended Mar. 31, 2018 - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total Warner Music Group Corp. Equity	Noncontrolling Interest
Beginning balance at Sep. 30, 2017	$ 308		$ 1,128	$ (654)	$ (181)	$ 293	$ 15
Beginning balance, shares at Sep. 30, 2017	1,052	1,055
Net income (loss)	$ 4			1		1	3
Dividends	(125)			(125)		(125)
Other comprehensive income, net of tax	20				20	20
Distribution to noncontrolling interest holders	(2)						(2)
Other		(3)
Ending balance at Mar. 31, 2018	$ 205		$ 1,128	$ (778)	$ (161)	$ 189	$ 16
Ending balance, shares at Mar. 31, 2018	1,052	1,052

Description of Business

Description of Business	6 Months Ended
	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business	1. Description of Business Warner Music Group Corp. (the “Company”) was formed on November 21, 2003. The Company is the direct parent of WMG Holdings Corp. (“Holdings”), which is the direct parent of WMG Acquisition Corp. (“Acquisition Corp.”). Acquisition Corp. is one of the world’s major music-based content companies. Acquisition of Warner Music Group by Access Industries Pursuant to an Agreement and Plan of Merger, dated as of May 6, 2011 (the “Merger Agreement”), by and among the Company, AI Entertainment Holdings LLC (formerly Airplanes Music LLC), a Delaware limited liability company (“Parent”) and an affiliate of Access Industries, Inc. (“Access”), and Airplanes Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), on July 20, 2011 (the “Merger Closing Date”), Merger Sub merged with and into the Company with the Company surviving as a wholly owned subsidiary of Parent (the “Merger”). In connection with the Merger, the Company delisted its common stock from the NYSE. The Company continues voluntarily to file with the SEC current and periodic reports that would be required to be filed with the SEC pursuant to Section 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as provided for in certain covenants contained in the agreements governing its outstanding indebtedness. Recorded Music Operations The Company’s Recorded Music business primarily consists of the discovery and development of artists and the related marketing, distribution and licensing of recorded music produced by such artists. The Company plays an integral role in virtually all aspects of the recorded music value chain from discovering and developing talent to producing music and promoting artists and their products. In the United States, Recorded Music operations are conducted principally through the Company’s major record labels— Warner Bros. Records and Atlantic Records. The Company’s Recorded Music operations also include Rhino, a division that specializes in marketing the Company’s music catalog through compilations and reissuances of previously released music and video titles. The Company also conducts its Recorded Music operations through a collection of additional record labels, including Asylum, Big Beat, Canvasback, East West, Elektra, Erato, FFRR, Fueled by Ramen, Nonesuch, Parlophone, Reprise, Roadrunner, Sire, Spinnin’, Warner Classics and Warner Music Nashville. Outside the United States, Recorded Music activities are conducted in more than 50 countries through various subsidiaries, affiliates and non-affiliated licensees. Internationally, the Company engages in the same activities as in the United States: discovering and signing artists and distributing, marketing and selling their recorded music. In most cases, the Company also markets and distributes the music of those artists for whom the Company’s domestic record labels have international rights. In certain smaller markets, the Company licenses the right to distribute the Company’s records to non-affiliated third-party record labels. The Company’s international artist services operations include a network of concert promoters through which it provides resources to coordinate tours for the Company’s artists and other artists as well as management companies that guide artists with respect to their careers. The Company’s Recorded Music distribution operations include Warner-Elektra-Atlantic Corporation (“WEA Corp.”), which markets and sells music and video products to retailers and wholesale distributors; Alternative Distribution Alliance (“ADA”), which distributes the products of independent labels to retail and wholesale distributors; and various distribution centers and ventures operated internationally. In addition to the Company’s Recorded Music products being sold in physical retail outlets, Recorded Music products are also sold in physical form to online physical retailers such as Amazon.com and bestbuy.com and in digital form to an expanded universe of digital partners, including digital streaming services such as Amazon, Apple Music, Deezer, Napster, Soundcloud, Spotify and YouTube, digital radio services such as iHeart Radio, Pandora and Sirius XM and digital download services such as Apple’s iTunes and Google Play. The Company has integrated the exploitation of digital content into all aspects of its business, including artist and repertoire (“A&R”), marketing, promotion and distribution. The Company’s business development executives work closely with A&R departments to ensure that while music is being produced, digital assets are also created with all distribution channels in mind, including streaming services, social networking sites, online portals and music-centered destinations. The Company also works side by side with its online and mobile partners to test new concepts. The Company believes existing and new digital businesses will be a significant source of growth and will provide new opportunities to successfully monetize its assets and create new revenue streams. The proportion of digital revenues attributed to each distribution channel varies by region and proportions may change as the roll out of new technologies continues. As an owner of music content, the Company believes it is well positioned to take advantage of growth in digital distribution and emerging technologies to maximize the value of its assets. The Company has diversified its revenues beyond its traditional businesses by entering into expanded-rights deals with recording artists in order to partner with artists in other aspects of their careers. Under these agreements, the Company provides services to and participates in artists’ activities outside the traditional recorded music business such as touring, merchandising and sponsorships. The Company has built artist services capabilities and platforms for exploiting this broader set of music-related rights and participating more widely in the monetization of the artist brands it helps create. The Company believes that entering into expanded-rights deals and enhancing its artist services capabilities in areas such as concert promotion and management have permitted it to diversify revenue streams and capitalize on other revenue opportunities. This provides for improved long-term relationships with artists and allows the Company to more effectively connect artists and fans. Music Publishing Operations While recorded music is focused on exploiting a particular recording of a composition, music publishing is an intellectual property business focused on the exploitation of the composition itself. In return for promoting, placing, marketing and administering the creative output of a songwriter, or engaging in those activities for other rightsholders, the Company’s Music Publishing business garners a share of the revenues generated from use of the composition. The Company’s Music Publishing operations are conducted principally through Warner/Chappell, its global Music Publishing company, headquartered in Los Angeles with operations in over 50 countries through various subsidiaries, affiliates and non-affiliated licensees. The Company owns or controls rights to more than one million musical compositions, including numerous pop hits, American standards, folk songs and motion picture and theatrical compositions. Assembled over decades, its award-winning catalog includes over 70,000 songwriters and composers and a diverse range of genres including pop, rock, jazz, classical, country, R&B, hip-hop, rap, reggae, Latin, folk, blues, symphonic, soul, Broadway, techno, alternative and gospel. Warner/Chappell also administers the music and soundtracks of several third-party television and film producers and studios. The Company has an extensive production music library collectively branded as Warner/Chappell Production Music.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Interim Financial Statements The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six month period ended March 31, 2018 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2018. The consolidated balance sheet at September 30, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2017 (File No. 001-32502). Basis of Consolidation The accompanying financial statements present the consolidated accounts of all entities in which the Company has a controlling voting interest and/or variable interest required to be consolidated in accordance with U.S. GAAP. All intercompany balances and transactions have been eliminated. Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation The Company maintains a 52-53 week fiscal year ending on the last Friday in each reporting period. As such, all references to March 31, 2018 and March 31, 2017 relate to the periods ended March 30, 2018 and March 31, 2017, respectively. For convenience purposes, the Company continues to date its financial statements as of March 31. The fiscal year ended September 30, 2017 ended on September 29, 2017. The Company has performed a review of all subsequent events through the date the financial statements were issued, and has determined that no additional disclosures are necessary. Income Taxes At the end of each interim period, the Company makes its best estimate of the effective tax rate expected to be applicable for the full fiscal year and uses that rate to provide for income taxes on a current year-to-date basis before discrete items. If a reliable estimate of the annual effective tax rate cannot be made, which could be caused by the significant variability in rates when marginal earnings are expected for the year, a discrete tax rate is calculated for the period. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). In accordance with ASC Topic 740, Income Taxes (“ASC 740”) the Company recorded the impacts in the period of enactment. New Accounting Pronouncements In October 2017, the Company adopted ASU 2016-09, Compensation - Stock Compensation The adoption of ASU 2016-09 did not have any effect on the Company’s consolidated financial statements and footnote disclosures as of March 31, 2018 In May 2014, the FASB issued guidance codified in ASC 606, Revenue from Contracts with Customers (“ASC 606”), which replaces the guidance in former ASC 605, Revenue Recognition and ASC 928-605, Entertainment – Music. The amendment was the result of a joint effort by the FASB and the International Accounting Standards Board to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and international financial reporting standards ("IFRS"). The joint project clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP and IFRS. ASC 606 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The update may be applied using one of two methods: retrospective application to each prior reporting period presented, or retrospective application with the cumulative effect of initially applying the update recognized at the date of initial application. The Company currently plans to adopt this ASU under the modified retrospective method. While the Company is currently evaluating the impact of adoption of this new standard on the consolidated financial statements, the Company believes the most significant impact will be a change in the timing of revenue recognition in our Music Publishing segment. The Company generally records revenue from the licensing of publishing rights when cash is received. Under the new revenue recognition rules, revenues will be recorded based on best estimates available in the period of sales or usage. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments In October 2016, the FASB issued ASU 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory In August 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities In February 2018, FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income In March 2018, the FASB issued ASU 2018-5, Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118

Comprehensive Income (Loss)

Comprehensive Income (Loss)	6 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Comprehensive Income (Loss)	3. Comprehensive Income (Loss) Comprehensive income (loss), which is reported in the accompanying consolidated statements of equity, consists of net income (loss) and other gains and losses affecting equity that, under U.S. GAAP, are excluded from net income (loss). For the Company, the components of other comprehensive income (loss) primarily consist of foreign currency translation gains and losses and minimum pension liabilities. The following summary sets forth the changes in the components of accumulated other comprehensive loss, net of related taxes of less than $1 million: Foreign Minimum Deferred Income Accumulated Currency Pension On Derivative Other Translation Liability Financial Comprehensive (Loss) Gain (a) Adjustment Instruments Loss, net (in millions) Balance at September 30, 2017 $ (171 ) $ (10 ) $ — $ (181 ) Other comprehensive income 18 — 2 20 Amounts reclassified from accumulated other comprehensive income — — — — Balance at March 31, 2018 $ (153 ) $ (10 ) $ 2 $ (161 ) (a) Includes historical foreign currency translation related to certain intra-entity transactions that are no longer considered of a long-term investment nature.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	4. Goodwill and Intangible Assets Goodwill The following analysis details the changes in goodwill for each reportable segment: Recorded Music Music Publishing Total (in millions) Balance at September 30, 2017 $ 1,221 $ 464 $ 1,685 Acquisitions — — — Divestitures — — — Other adjustments (a) 11 — 11 Balance at March 31, 2018 $ 1,232 $ 464 $ 1,696 (a) Other adjustments during the six months ended March 31, 2018 represent foreign currency movements. The Company performs its annual goodwill impairment test in accordance with ASC 350, Intangibles—Goodwill and other At March 31, 2018 and September 30, 2017, the goodwill and intangible balances presented include the preliminary purchase accounting allocation resulting from the acquisition of Spinnin’ Records on September 7, 2017. The acquisition of Spinnin’ Records was accounted for as a business combination under ASC 805, which requires the acquisition method of accounting. At September 30, 2017, the Company performed a preliminary purchase allocation under the acquisition method of accounting, which is subject to revision based on final determinations of fair value and allocations of purchase price to the identifiable assets and liabilities acquired. At March 31, 2018, the Company has not made any significant adjustments to the preliminary allocation recorded at September 30, 2017. Intangible Assets Intangible assets consist of the following: Weighted Average March 31, September 30, Useful Life 2018 2017 (in millions) Intangible assets subject to amortization: Recorded music catalog 10 years $ 920 $ 898 Music publishing copyrights 27 years 1,564 1,534 Artist and songwriter contracts 13 years 924 904 Trademarks 6 years 14 14 Other intangible assets 7 years 17 10 Total gross intangible asset subject to amortization 3,439 3,360 Accumulated amortization (1,402 ) (1,270 ) Total net intangible assets subject to amortization 2,037 2,090 Intangible assets not subject to amortization: Trademarks and tradenames Indefinite 118 117 Total net intangible assets $ 2,155 $ 2,207

Debt

Debt	6 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Debt	5. Debt Debt Capitalization Long-term debt consists of the following: March 31, September 30, 2018 2017 (in millions) Revolving Credit Facility—Acquisition Corp. (a) $ — $ — Senior Term Loan Facility due 2023—Acquisition Corp. (b) 1,307 990 5.625% Senior Secured Notes due 2022—Acquisition Corp. (c) 246 246 5.00% Senior Secured Notes due 2023—Acquisition Corp. (d) 297 297 4.125% Senior Secured Notes due 2024— Acquisition Corp. (e) 419 402 4.875% Senior Secured Notes due 2024— Acquisition Corp. (f) 247 246 6.75% Senior Notes due 2022—Acquisition Corp. (g) 111 630 5.50% Senior Notes due 2026—Acquisition Corp. (h) 320 — Total debt (i) 2,947 2,811 Less: current portion 111 — Total long-term debt $ 2,836 $ 2,811 (a) Reflects $180 million and $150 million of commitments under the Revolving Credit Facility at March 31, 2018 and September 30, 2017, respectively, less letters of credit outstanding of approximately $12 million at both March 31, 2018 and September 30, 2017. There were no loans outstanding under the Revolving Credit Facility at March 31, 2018 or September 30, 2017. (b) Principal amount of $1.326 billion and $1.006 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $14 million and $10 million at March 31, 2018 and September 30, 2017, respectively. (c) Principal amount of $248 million less unamortized deferred financing costs of $2 million at both March 31, 2018 and September 30, 2017. (d) Principal amount of $300 million less unamortized deferred financing costs of $3 million at both March 31, 2018 and September 30, 2017. (e) Face amount of €345 million. Above amounts represent the dollar equivalent of such notes at March 31, 2018 and September 30, 2017. Principal amount of $424 million and $407 million at March 31, 2018 and September 30, 2017, respectively, less unamortized deferred financing costs of $5 million at both March 31, 2018 and September 30, 2017. (f) Principal amount of $250 million at both March 31, 2018 and September 30, 2017 less unamortized deferred financing costs of $3 million and $4 million at March 31, 2018 and September 30, 2017, respectively. (g) Principal amount of $112 million and $635 million less unamortized deferred financing costs of $1 million and $5 million at March 31, 2018 and September 30, 2017, respectively. Reflects amount not redeemed as of March 31, 2018 as described below under “Tender Offer and Notes Redemption.” The remaining 6.75% Senior Notes were redeemed on April 15, 2018. (h) Principal amount of $325 million less unamortized deferred financing costs of $5 million at March 31, 2018. (i) Principal amount of debt of $2.985 billion and $2.846 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $33 million and $29 million at March 31, 2018 and September 30, 2017, respectively. December 2017 Senior Term Loan Credit Agreement Amendment On December 6, 2017, Acquisition Corp. entered into an amendment (the “December 2017 Senior Term Loan Credit Agreement Amendment”) to the Senior Term Loan Credit Agreement, dated November 1, 2012, among Acquisition Corp., the guarantors party thereto, the lenders party thereto and Credit Suisse AG, as administrative agent, governing Acquisition Corp.’s senior secured term loan facility with Credit Suisse AG, as administrative agent, and the other financial institutions and lenders from time to time party thereto, to, among other things, reduce the pricing terms of its outstanding term loans, change certain incurrence thresholds governing the ability to incur debt and liens, change certain EBITDA add-backs and increase the thresholds above which the excess cash flow sweep is triggered. The Company recorded a loss on extinguishment of debt of approximately $1 million, which represented the discount and unamortized deferred financing costs related to the debt of the lenders that was fully repaid. New Revolving Credit Agreement On January 31, 2018, the Company entered into a new revolving credit agreement (the “Revolving Credit Agreement”) for its Revolving Credit Facility, and terminated its existing revolving credit agreement (the “Old Revolving Credit Agreement”). The Revolving Credit Agreement differs from the Old Revolving Credit Agreement in that it, among other things, reduces the interest rate margin applicable to the loans, extends the maturity date thereunder, provides for the option to increase the commitments under the Company’s then existing revolving credit agreement, provides for greater flexibility to amend and extend the Company’s then existing revolving credit agreement and create additional tranches thereunder, provides for greater flexibility over future amendments, increases the springing financial maintenance covenant to 4.75:1.00 and provides that the covenant shall not be tested unless at the end of a fiscal quarter the outstanding amount of loans and drawings under letters of credit which have not been reimbursed exceeds $54 million and aligns the other negative covenants with those of the Senior Term Loan Credit Agreement. References to “Revolving Credit Facility” below in this Note 5 are to our new revolving credit facility March 2018 Senior Term Loan Credit Agreement Amendment On March 14, 2018, Acquisition Corp. incurred $320 million of supplemental term loans (the “Supplemental Term Loans”) pursuant to an increase supplement (the “March 2018 Senior Term Loan Credit Agreement Supplement”) to the Senior Term Loan Credit Agreement, dated November 1, 2012, among Acquisition Corp., the guarantors party thereto, the lenders party thereto and Credit Suisse AG, as administrative agent, governing Acquisition Corp.’s senior secured term loan facility with Credit Suisse AG, as administrative agent, and the other financial institutions and lenders from time to time party thereto (as amended, the “Senior Term Loan Credit Agreement”). The principal amount outstanding under the Senior Term Loan Credit Agreement including the Supplemental Term Loans is $1.326 billion . Notes Offering On March 14, 2018, Acquisition Corp. issued $325 million in aggregate principal amount of its 5.50% Senior Notes due 2026. Acquisition Corp. used the net proceeds to pay the consideration in the tender offer for its 6.75% Senior Notes due 2022 (the “6.75% Senior Notes”) and to redeem the remaining 6.75% Senior Notes as described below. Tender Offer and Notes Redemption On March 14, 2018, Acquisition Corp. accepted for purchase in connection with the tender offer for the 6.75% Senior Notes that had been validly tendered and not validly withdrawn at or prior to 5:00 p.m., New York City time on March 13, 2018 (the “Expiration Time”) thereby reducing the aggregate principal amount of the 6.75% Senior Notes by $523 million. Acquisition Corp. then issued a notice of redemption on March 14, 2018 with respect to the remaining $112 million of 6.75% Senior Notes outstanding that were not accepted for payment pursuant to the tender offer. Following payment of the 6.75% Senior Notes tendered at or prior to the Expiration Time, Acquisition Corp. deposited with the Trustee funds of $119 million to satisfy all obligations under the applicable indenture governing the 6.75% Senior Notes, including call premiums and interest through the date of redemption on April 15, 2018, for the remaining 6.75% Senior Notes not accepted for purchase in the tender offer, which is reflected as a current asset on the Company’s balance sheet at March 31, 2018. On April 15, 2018, Acquisition Corp. redeemed the remaining outstanding 6.75% Senior Notes. The Company recorded a loss on extinguishment of debt in connection with the tender offer of approximately $23 million as a result of the partial debt redemption, which represents the premium paid on early redemption and unamortized deferred financing costs. The Company expects to incur an additional loss on extinguishment of approximately $5 million in April 2018 related to the redemption on the remaining 6.75% Senior Notes, which represents the premium paid on early redemption and unamortized deferred financing costs. Interest Rates The loans under the Revolving Credit Facility bear interest at Acquisition Corp.’s election at a rate equal to (i) the rate for deposits in the borrowing currency in the London interbank market (adjusted for maximum reserves) for the applicable interest period (“Revolving LIBOR”) subject to a zero floor, plus 1.75% per annum, or (ii) the base rate, which is the highest of (x) the corporate base rate established by the administrative agent from time to time, (y) 0.50% in excess of the overnight federal funds rate and (z) the one-month Revolving LIBOR plus 1.0% per annum, plus, in each case, 0.75% per annum. If there is a payment default at any time, then the interest rate applicable to overdue principal will be the rate otherwise applicable to such loan plus 2.0% per annum. Default interest will also be payable on other overdue amounts at a rate of 2.0% per annum above the amount that would apply to an alternative base rate loan. The loans under the Senior Term Loan Facility bear interest at Acquisition Corp.’s election at a rate equal to (i) the rate for deposits in U.S. dollars in the London interbank market (adjusted for maximum reserves) for the applicable interest period (“Term Loan LIBOR”) subject to a zero floor, plus 2.25% per annum, or (ii) the base rate, which is the highest of (x) the corporate base rate established by the administrative agent as its prime rate in effect at its principal office in New York City from time to time, (y) 0.50% in excess of the overnight federal funds rate and (z) one-month Term Loan LIBOR, plus 1.00% per annum, plus, in each case, 1.25% per annum. If there is a payment default at any time, then the interest rate applicable to overdue principal and interest will be the rate otherwise applicable to such loan plus 2.0% per annum. Default interest will also be payable on other overdue amounts at a rate of 2.0% per annum above the amount that would apply to an alternative base rate loan. The Company has entered into, and in the future may enter into, interest rate swaps to manage interest rate risk. Maturity of Senior Term Loan Facility The loans outstanding under the Senior Term Loan Facility mature on November 1, 2023, subject, in certain circumstances, to a springing maturity inside the maturity of certain of Acquisition Corp.’s other indebtedness. Maturity of Revolving Credit Facility The maturity date of the Revolving Credit Facility is January 31, 2023. Maturities of Senior Notes and Senior Secured Notes As of March 31, 2018, there are no scheduled maturities of notes until 2022, when $360 million is scheduled to mature. Of this amount, $112 million representing the remaining principal amount of the 6.75% Senior Notes were redeemed on April 15, 2018 as described above under “Tender Offer and Notes Redemption.” Thereafter, $1.299 billion is scheduled to mature. Interest Expense, net Total interest expense, net, was $36 million for both the three months ended March 31, 2018 and March 31, 2017. Total interest expense, net, was $72 million and $76 million for the six months ended March 31, 2018 and March 31, 2017, respectively. The weighted-average interest rate of the Company’s total debt was 4.7% at March 31, 2018 (decreasing to 4.6% after the redemption of the remaining 6.75% Senior Notes on April 15, 2018) and 4.9% at September 30, 2017 and March 31, 2017.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	6. Commitments and Contingencies Pricing of Digital Music Downloads On December 20, 2005 and February 3, 2006, the Attorney General of the State of New York served the Company with requests for information in connection with an industry-wide investigation as to the pricing of digital music downloads. On February 28, 2006, the Antitrust Division of the U.S. Department of Justice served us with a Civil Investigative Demand, also seeking information relating to the pricing of digitally downloaded music. Both investigations were ultimately closed, but subsequent to the announcements of the investigations, more than thirty putative class action lawsuits were filed concerning the pricing of digital music downloads. The lawsuits were consolidated in the Southern District of New York. The consolidated amended complaint, filed on April 13, 2007, alleges conspiracy among record companies to delay the release of their content for digital distribution, inflate their pricing of CDs and fix prices for digital downloads. The complaint seeks unspecified compensatory, statutory and treble damages. On October 9, 2008, the District Court issued an order dismissing the case as to all defendants, including us. However, on January 13, 2010, the Second Circuit vacated the judgment of the District Court and remanded the case for further proceedings and on January 10, 2011, the U.S. Supreme Court denied the defendants’ petition for Certiorari. Upon remand to the District Court, all defendants, including the Company, filed a renewed motion to dismiss challenging, among other things, plaintiffs’ state law claims and standing to bring certain claims. The renewed motion was based mainly on arguments made in defendants’ original motion to dismiss, but not addressed by the District Court. On July 18, 2011, the District Court granted defendants’ motion in part, and denied it in part. Notably, all claims on behalf of the CD-purchaser class were dismissed with prejudice. However, a wide variety of state and federal claims remain for the class of Internet download purchasers. On March 19, 2014, plaintiffs filed a motion for class certification. Plaintiffs filed an operative consolidated amended complaint on September 25, 2015. The Company filed its answer to the fourth amended complaint on October 9, 2015, and filed an amended answer on November 3, 2015. A mediation took place on February 22, 2016, but the parties were unable to reach a resolution. On July 18, 2017, the District Court denied plaintiffs’ motion for class certification. On August 1, 2017, plaintiffs filed a petition with the Second Circuit seeking permission to appeal the district court’s order denying class certification. On August 11, 2017, defendants filed their opposition to plaintiffs’ petition. On December 8, 2017, the Second Circuit denied plaintiffs’ request for leave to appeal the District Court’s order denying their motion for class certification. The parties have reached a settlement for a nominal payment and the lawsuit will be dismissed imminently. Sirius XM On September 11, 2013, the Company joined with Capitol Records, LLC, Sony Music Entertainment, UMG Recordings, Inc. and ABKCO Music & Records, Inc. in a lawsuit brought in California Superior Court against Sirius XM Radio Inc., alleging copyright infringement for Sirius XM’s use of pre-1972 sound recordings under California law. A nation-wide settlement was reached on June 17, 2015 pursuant to which Sirius XM paid the plaintiffs, in the aggregate, $210 million on July 29, 2015 and the plaintiffs dismissed their lawsuit with prejudice. The settlement resolves all past claims as to Sirius XM’s use of pre-1972 recordings owned or controlled by the plaintiffs and enables Sirius XM, without any additional payment, to reproduce, perform and broadcast such recordings in the United States through December 31, 2017. The allocation of the settlement proceeds among the plaintiffs was determined and the settlement proceeds were distributed accordingly. This resulted in a cash distribution to the Company of $33 million of which $28 million was recognized in revenue during the 2016 fiscal year and $4 million was recognized in revenue during the 2017 fiscal year. The balance of $1 million was recognized in the first quarter of the 2018 fiscal year. The Company is sharing its allocation of the settlement proceeds with its artists on the same basis as statutory revenue from Sirius XM is shared, i.e., the artist share of our allocation will be paid to artists by SoundExchange. As part of the settlement, plaintiffs agreed to negotiate in good faith to grant Sirius XM a license to publicly perform the plaintiffs’ pre-1972 sound recordings for the five-year period running from January 1, 2018 to December 31, 2022. Pursuant to the settlement, if the parties are unable to reach an agreement on license terms, the royalty rate for each license will be determined by binding arbitration on a willing buyer/willing seller standard. On December 21, 2017, Sirius XM commenced a single arbitration against all of the plaintiffs in California through JAMS to determine the rate for the five-year period. On May 1, 2018, the Company filed a lawsuit against Sirius XM in New York state court to stay the California arbitration and to compel a separate arbitration in New York solely between Sirius XM and the Company. Other Matters In addition to the matters discussed above, the Company is involved in various litigation and regulatory proceedings arising in the normal course of business. Where it is determined, in consultation with counsel based on litigation and settlement risks, that a loss is probable and estimable in a given matter, the Company establishes an accrual. In the currently pending proceedings, the amount of accrual is not material. An estimate of the reasonably possible loss or range of loss in excess of the amounts already accrued cannot be made at this time due to various factors typical in contested proceedings, including (1) the results of ongoing discovery; (2) uncertain damage theories and demands; (3) a less than complete factual record; (4) uncertainty concerning legal theories and their resolution by courts or regulators; and (5) the unpredictable nature of the opposing party and its demands. However, the Company cannot predict with certainty the outcome of any litigation or the potential for future litigation. As such, the Company continuously monitors these proceedings as they develop and adjusts any accrual or disclosure as needed. Regardless of the outcome, litigation could have an adverse impact on the Company, including the Company’s brand value, because of defense costs, diversion of management resources and other factors and it could have a material effect on the Company’s results of operations for a given reporting period.

Income Taxes

Income Taxes	6 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (“Tax Act”). The Tax Act contains significant revisions to U.S. corporate income tax provisions, including, but not limited to, a reduction of the U.S. corporate statutory tax rate from 35% to 21%, a one-time transition tax on accumulated foreign earnings, an income inclusion of global intangible low-taxed income (“GILTI”), and a new minimum tax, base erosion anti-abuse tax (“BEAT”). In accordance with ASC 740, the Company recorded the effects of the Tax Act during the three months ended December 31, 2017, the period of enactment. The reduction in U.S. corporate statutory tax rate from 35% to 21% is effective January 1, 2018. The Tax Act requires companies with a fiscal year that begins before and ends after the effective date of the rate change to calculate a blended tax rate based on the pro rata number of days in the fiscal year before and after the effective date. As a result, for the fiscal year ending September 30, 2018, the Company’s statutory income tax rate will be 24.5%. For the fiscal year ending September 30, 2019, the Company will be subject to the U.S. corporate statutory tax rate of 21%. The reduction in the U.S. corporate statutory rate requires the Company to adjust its U.S. deferred tax assets and liabilities using the newly enacted tax rate of 21%. As a result, the Company recorded a provisional U.S. income tax expense of $26 million for the reduction of its net U.S. deferred tax assets as a discrete item for the three months ended December 31, 2017. Since the Company has a fiscal year ending September 30, 2018, and has applied an annual effective tax rate in calculating its income tax provision for the three and six months ended March 31, 2018, the impact of the U.S. corporate statutory tax rate change will not be finalized until September 30, 2018. Furthermore, the Company has a provisional deferred tax liability of approximately $4 million, after the impact of the newly enacted tax rate, associated with unremitted earnings due to the uncertainty of the treatment of future distributions under the Tax Act. The one-time transition tax on accumulated foreign earnings (“Transition Tax”) would be imposed at a rate of 15.5% for cash and equivalents and 8% for illiquid assets. The Company reasonably estimates that there is no income tax impact related to the Transition Tax and recorded no income tax liability for the three and six months ended March 31, 2018 due to an estimated overall deficit in accumulated foreign earnings. This estimate is provisional since the Company has not obtained and analyzed information necessary to finalize its accounting for the impact of the Transition Tax. The final impacts of the Transition Tax may differ from the estimate due to changes in interpretations of the Tax Act and updates or changes to the information that the Company has used to estimate the transition impact, including, but not limited to, the impacts from changes to foreign earnings estimates, foreign exchange rates, and cash positions of foreign subsidiaries. GILTI and BEAT are effective for the Company for the fiscal year ended September 30, 2019. For the period of enactment, the Company has elected not to adjust its deferred taxes for the impact of GILTI and will consider the impact of GILTI in the specific period in which it occurs. For the three and six months ended March 31, 2018, the Company recorded an income tax expense of $19 million and $71 million, respectively. The income tax expense for the three months ended March 31, 2018 is greater than expected at the blended statutory tax rate of 24.5% primarily due to foreign income taxed at rates higher than the U.S. statutory tax rate, income withholding taxes, foreign losses with no tax benefit and an increase in uncertain tax positions. The income tax expense for the six months ended March 31, 2018 is greater than the expected income tax expense at the blended statutory tax rate of 24.5% primarily due to a U.S. income tax expense of $26 million arising from a reduction in net U.S. deferred tax assets due to the change in the U.S. statutory tax rate, foreign income taxed at rates higher than the U.S. statutory tax rate, income withholding taxes, foreign losses with no tax benefit and an increase in uncertain tax positions. For the three and six months ended March 31, 2017, the Company recorded income tax expense of $3 million and $20 million, respectively. The income tax expense for the three and six months ended March 31, 2017 was lower than the expected income tax expense at the statutory tax rate of 35% primarily due to the U.S. tax benefit of a realized foreign currency loss on an intra-entity loan reduced by a related valuation allowance and further offset by income withholding taxes and foreign losses with no tax benefit. The Company has determined that it is reasonably possible that the gross unrecognized tax benefits as of March 31, 2018 could decrease by up to approximately $3 million related to various ongoing audits and settlement discussions in various foreign jurisdictions during the next twelve months.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Mar. 31, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	8. Derivative Financial Instruments The Company uses derivative financial instruments, primarily foreign currency forward exchange contracts and interest rate swaps, for the purposes of managing foreign currency exchange rate risk and interest rate risk on expected future cash flows. However, the Company may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange or interest rates. The Company enters into foreign currency forward exchange contracts primarily to hedge the risk that unremitted or future royalties and license fees owed to its domestic companies for the sale, or anticipated sale, of U.S.-copyrighted products abroad may be adversely affected by changes in foreign currency exchange rates. The Company focuses on managing the level of exposure to the risk of foreign currency exchange rate fluctuations on its major currencies, which include the Euro, British pound sterling, Japanese yen, Canadian dollar, Swedish krona and Australian dollar. The foreign currency forward exchange contracts related to royalties are designated and qualify as cash flow hedges under the criteria prescribed in ASC 815, Derivatives and Hedging The Company may at times choose to hedge foreign currency risk associated with financing transactions such as third-party debt and other balance sheet items. The foreign currency forward exchange contracts related to balance sheet items denominated in foreign currency are reviewed on a contract-by-contract basis and are designated accordingly. If these foreign currency forward exchange contracts do not qualify for hedge accounting, then the Company records these contracts at fair value on its balance sheet and the related gains and losses are immediately recognized in the statement of operations where there is an equal and offsetting entry related to the underlying exposure. The Company has entered into, and in the future may enter into, interest rate swaps to manage interest rate risk. These instruments may offset a portion of changes in income or expense, or changes in fair value of the Company’s term debt. The interest rate swap instruments are designated and qualify as cash flow hedges under the criteria prescribed in ASC 815, Derivatives and Hedging The fair value of foreign currency forward exchange contracts is determined by using observable market transactions of spot and forward rates (i.e., Level 2 inputs) which is discussed further in Note 11. Additionally, netting provisions are provided for in existing International Swap and Derivative Association Inc. agreements in situations where the Company executes multiple contracts with the same counterparty. As a result, net assets or liabilities resulting from foreign exchange derivatives subject to these netting agreements are classified within other current assets or other current liabilities in the Company’s consolidated balance sheets. The Company’s hedged interest rate transactions as of March 31, 2018 are expected to be recognized within 5 years. The fair value of interest rate swaps is based on dealer quotes of market rates (i.e., Level 2 inputs) which is discussed further in Note 11. Interest income or expense related to interest rate swaps is recognized in interest income, net in the same period as the related expense is recognized. The ineffective portions of interest rate swaps is recognized in other income/(expense), net in the period measured. The Company monitors its positions with, and the credit quality of, the financial institutions that are party to any of its financial transactions. As of March 31, 2018, the Company had outstanding hedge contracts for the sale of $197 million and the purchase of $114 million of foreign currencies at fixed rates that will be settled by September 2018. As of March 31, 2018, the Company had $2 million of unrealized deferred income in comprehensive income related to foreign exchange hedging. As of September 30, 2017, the Company had no outstanding hedge contracts and no deferred gains or losses in comprehensive loss related to foreign exchange hedging. As of March 31, 2018, the Company had outstanding $320 million in pay-fixed receive-variable interest rate swaps with $1 million of unrealized deferred losses in comprehensive income related to the interest rate swap. As of September 30, 2017, the Company had no outstanding interest rate swaps and no deferred gains or losses in comprehensive income or losses related to interest rate swaps. The pre-tax gains and losses of the Company’s derivative interest rate swaps designated as cash flow hedges recorded in OCI and the Consolidated Statement of Comprehensive Income at March 31, 2018 and September 30, 2017 were $1 million and nil, respectively. The following is a summary of amounts recorded in the Consolidated Balance Sheet pertaining to the Company’s designated cash flows hedges at March 31, 2018 and September 30, 2017: March 31, September 30, 2018 (a) 2017 (in millions) Other current assets $ 2 $ — Other current liabilities 3 — Other noncurrent assets — — Other noncurrent liabilities 1 — (a) $5 million and $6 million of foreign exchange derivative contracts in asset and liability positions, respectively, and $1 million of interest rate swap in a liability position including non-designated cash flow hedges.

Segment Information

Segment Information	6 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Information	9. Segment Information As discussed more fully in Note 1, based on the nature of its products and services, the Company classifies its business interests into two fundamental operations: Recorded Music and Music Publishing, which also represent reportable segments of the Company. Information as to each of these operations is set forth below. The Company evaluates performance based on several factors, of which the primary financial measure is operating income (loss) before non-cash depreciation of tangible assets and non-cash amortization of intangible assets (“OIBDA”). The Company has supplemented its analysis of OIBDA results by segment with an analysis of operating income (loss) by segment. The accounting policies of the Company’s business segments are the same as those described in the summary of significant accounting policies included elsewhere herein. The Company accounts for intersegment sales at fair value as if the sales were to third parties. While intercompany transactions are treated like third-party transactions to determine segment performance, the revenues (and corresponding expenses recognized by the segment that is counterparty to the transaction) are eliminated in consolidation, and therefore, do not themselves impact consolidated results. Corporate Recorded Music expenses and Music Publishing eliminations Total Three Months Ended (in millions) March 31, 2018 Revenues $ 791 $ 174 $ (2 ) $ 963 Operating income (loss) 80 41 (38 ) 83 Amortization of intangible assets 38 17 — 55 Depreciation of property, plant and equipment 9 2 3 14 OIBDA 127 60 (35 ) 152 March 31, 2017 Revenues $ 686 $ 145 $ (6 ) $ 825 Operating income (loss) 69 41 (32 ) 78 Amortization of intangible assets 34 16 — 50 Depreciation of property, plant and equipment 9 1 3 13 OIBDA 112 58 (29 ) 141 Corporate Recorded Music expenses and Music Publishing eliminations Total Six Months Ended (in millions) March 31, 2018 Revenues $ 1,695 $ 317 $ (4 ) $ 2,008 Operating income (loss) 209 40 (76 ) 173 Amortization of intangible assets 74 34 — 108 Depreciation of property, plant and equipment 17 3 6 26 OIBDA 300 77 (70 ) 307 March 31, 2017 Revenues $ 1,483 $ 269 $ (10 ) $ 1,742 Operating income (loss) 192 39 (59 ) 172 Amortization of intangible assets 69 32 — 101 Depreciation of property, plant and equipment 16 3 6 25 OIBDA 277 74 (53 ) 298

Additional Financial Informatio

Additional Financial Information	6 Months Ended
	Mar. 31, 2018
Additional Financial Information [Abstract]
Additional Financial Information	10. Additional Financial Information Cash Interest and Taxes The Company made interest payments of approximately $34 million and $17 million during the three months ended March 31, 2018 and March 31, 2017, respectively. The Company made interest payments of approximately $86 million and $64 million during the six months ended March 31, 2018 and March 31, 2017, respectively. The Company paid approximately $10 million of income and withholding taxes, partially offset by $1 million of refunds, during the three months ended March 31, 2018 and paid approximately $13 million of income and withholding taxes, partially offset by $3 million of refunds during the three months ended March 31, 2017. The Company paid approximately $18 million of income and withholding taxes, partially offset by $1 million of refunds, during the six months ended March 31, 2018 and paid approximately $22 million of income and withholding taxes, partially offset by $3 million of refunds during the six months ended March 31, 2017.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	11. Fair Value Measurements ASC 820, Fair Value Measurement In addition to defining fair value, ASC 820 expands the disclosure requirements around fair value and establishes a fair value hierarchy for valuation inputs. The hierarchy prioritizes the inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of the three levels which is determined by the lowest level input that is significant to the fair value measurement in its entirety. These levels are: • Level 1—inputs are based upon unadjusted quoted prices for identical instruments traded in active markets. • Level 2—inputs are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3—inputs are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The fair values are therefore determined using model-based techniques that include option pricing models, discounted cash flow models and similar techniques. In accordance with the fair value hierarchy, described above, the following table shows the fair value of the Company’s financial instruments that are required to be measured at fair value as of March 31, 2018 and September 30, 2017. Fair Value Measurements as of March 31, 2018 (Level 1) (Level 2) (Level 3) Total (in millions) Other Current Assets: Foreign Currency Forward Exchange Contracts (a) $ — $ 2 $ — $ 2 Other Current Liabilities: Foreign Currency Forward Exchange Contracts (a) — (3 ) — (3 ) Other Current Liabilities: Contractual Obligations (b) — — — — Other Non-Current Liabilities: Contractual Obligations (b) — — (6 ) (6 ) Interest Rate Swap (c) — (1 ) — (1 ) Total $ — $ (2 ) $ (6 ) $ (8 ) Fair Value Measurements as of September 30, 2017 (Level 1) (Level 2) (Level 3) Total (in millions) Other Current Liabilities: Contractual Obligations (b) — — — — Other Non-Current Liabilities: Contractual Obligations (b) — — (5 ) (5 ) Total $ — $ — $ (5 ) $ (5 ) (a) The fair value of foreign currency forward exchange contracts is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay at their maturity dates for contracts involving the same currencies and maturity dates. (b) This represents purchase obligations and contingent consideration related to the Company’s various acquisitions. This is based on a discounted cash flow approach and it is adjusted to fair value on a recurring basis and any adjustments are included as a component of operating income in the statement of operations. These amounts were mainly calculated using unobservable inputs such as future earnings performance of the Company’s various acquisitions and the expected timing of the payment. (c) The fair value of the interest rate swap is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay as of March 31, 2018 for contracts involving the same attributes and maturity dates. The following table reconciles the beginning and ending balances of net assets and liabilities classified as Level 3: Total (in millions) Balance at September 30, 2017 (5 ) Additions (1 ) Reductions — Payments — Balance at March 31, 2018 $ (6 ) The majority of the Company’s non-financial instruments, which include goodwill, intangible assets, inventories, and property, plant, and equipment, are not required to be re-measured to fair value on a recurring basis. These assets are evaluated for impairment if certain triggering events occur. If such evaluation indicates that impairment exists, the asset is written down to its fair value. In addition, an impairment analysis is performed at least annually for goodwill and indefinite-lived intangible assets. Fair Value of Debt Based on the level of interest rates prevailing at March 31, 2018, the fair value of the Company’s debt was $3.027 billion. Based on the level of interest rates prevailing at September 30, 2017, the fair value of the Company’s debt was $2.936 billion. The fair value of the Company’s debt instruments are determined using quoted market prices from less active markets or by using quoted market prices for instruments with identical terms and maturities; both approaches are considered a Level 2 measurement.

Subsequent Events

Subsequent Events	6 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	12. Subsequent Events Spotify Share Sale Subsequent to March 31, 2018, the Company sold shares of common stock received as consideration under contracts entered into in the ordinary course of business with Spotify Technology S.A. for aggregate consideration of approximately $400 million in cash proceeds, a portion of such proceeds which the Company expects to share with artists. The sale of shares will result in a pre-tax gain, net, of approximately $300 million. Any unrealized gains or losses on the remaining shares held by the Company will be recorded to other income (expense). Special Cash Dividend On May 7, 2018, our Board of Directors declared a special cash dividend of $300 million to be paid on May 11, 2018 to stockholders of record as of May 7, 2018.

Guarantor and Non-Guarantor Sub

Guarantor and Non-Guarantor Subsidiaries Financial Information	6 Months Ended
	Mar. 31, 2018
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Guarantor and Non-Guarantor Subsidiaries Financial Information	WARNER MUSIC GROUP CORP. Supplementary Information Consolidating Financial Statements The Company is the direct parent of Holdings, which is the direct parent of Acquisition Corp. Acquisition Corp. has issued and outstanding the 5.625% Senior Secured Notes due 2022, the 5.00% Senior Secured Notes due 2023, the 4.125% Senior Secured Notes due 2024, the 4.875% Senior Secured Notes due 2024, the 6.75% Senior Notes due 2022 and the 5.50% Senior Notes due 2026 (together, the “Acquisition Corp. Notes”). The Acquisition Corp. Notes are guaranteed by the Company and, in addition, are guaranteed by all of Acquisition Corp.’s domestic wholly-owned subsidiaries. The secured notes are guaranteed on a senior secured basis and the unsecured notes are guaranteed on an unsecured senior basis. The Company’s guarantee of the Acquisition Corp. Notes is full and unconditional. The guarantee of the Acquisition Corp. Notes by Acquisition Corp.’s domestic, wholly-owned subsidiaries are full, unconditional and joint and several. The following condensed consolidating financial statements are also presented for the information of the holders of the Acquisition Corp. Notes and present the results of operations, financial position and cash flows of (i) Acquisition Corp., which is the issuer of the Acquisition Corp. Notes, (ii) the guarantor subsidiaries of Acquisition Corp., (iii) the non-guarantor subsidiaries of Acquisition Corp. and (iv) the eliminations necessary to arrive at the information for Acquisition Corp. on a consolidated basis. Investments in consolidated subsidiaries are presented under the equity method of accounting. There are no restrictions on Acquisition Corp.’s ability to obtain funds from any of its wholly-owned subsidiaries through dividends, loans or advances. The Company and Holdings are holding companies that conduct substantially all of their business operations through Acquisition Corp. Accordingly, the ability of the Company and Holdings to obtain funds from their subsidiaries is restricted by the indentures for the Acquisition Corp. Notes and the credit agreements for the Acquisition Corp. Senior Credit Facilities, including the Revolving Credit Facility and Senior Term Loan Facility. Consolidating Balance Sheet (Unaudited) March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Assets: Current assets: Cash and equivalents $ — $ 329 $ 283 $ — $ 612 $ — $ — $ — $ 612 Redemption deposit 119 — — — 119 — — — 119 Accounts receivable, net — 230 197 — 427 — — — 427 Inventories — 14 25 — 39 — — — 39 Royalty advances expected to be recouped within one year — 98 50 — 148 — — — 148 Prepaid and other current assets — 12 50 — 62 — — — 62 Total current assets 119 683 605 — 1,407 — — — 1,407 Due (to) from parent companies 518 (49 ) (469 ) — — — — — — Investments in and advances to consolidated subsidiaries 2,520 1,630 — (4,150 ) — 398 398 (796 ) — Royalty advances expected to be recouped after one year — 120 61 — 181 — — — 181 Property, plant and equipment, net — 138 76 — 214 — — — 214 Goodwill — 1,368 328 — 1,696 — — — 1,696 Intangible assets subject to amortization, net — 992 1,045 — 2,037 — — — 2,037 Intangible assets not subject to amortization — 71 47 — 118 — — — 118 Deferred tax assets, net — 44 8 — 52 — — — 52 Other assets 8 50 19 — 77 — — — 77 Total assets $ 3,165 $ 5,047 $ 1,720 $ (4,150 ) $ 5,782 $ 398 $ 398 $ (796 ) $ 5,782 Liabilities and Deficit: Current liabilities: Accounts payable $ 1 $ 126 $ 76 $ — $ 203 $ — $ — $ — $ 203 Accrued royalties — 785 573 — 1,358 — — — 1,358 Accrued liabilities — 155 185 — 340 — — — 340 Accrued interest 27 — — — 27 — — — 27 Deferred revenue — 146 51 — 197 — — — 197 Current portion of long-term debt 111 — — — 111 — — — 111 Other current liabilities — 5 32 — 37 — — — 37 Total current liabilities 139 1,217 917 — 2,273 — — — 2,273 Long-term debt 2,836 — — — 2,836 — — — 2,836 Deferred tax liabilities, net — — 194 — 194 — — — 194 Other noncurrent liabilities 1 156 117 — 274 — — — 274 Total liabilities 2,976 1,373 1,228 — 5,577 — — — 5,577 Total Warner Music Group Corp. equity 189 3,669 481 (4,150 ) 189 398 398 (796 ) 189 Noncontrolling interest — 5 11 — 16 — — — 16 Total equity 189 3,674 492 (4,150 ) 205 398 398 (796 ) 205 Total liabilities and equity $ 3,165 $ 5,047 $ 1,720 $ (4,150 ) $ 5,782 $ 398 $ 398 $ (796 ) $ 5,782 Consolidating Balance Sheet September 30, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Assets: Current assets: Cash and equivalents $ — $ 347 $ 300 $ — $ 647 $ — $ — $ — $ 647 Accounts receivable, net — 214 190 — 404 — — — 404 Inventories — 12 27 — 39 — — — 39 Royalty advances expected to be recouped within one year — 89 52 — 141 — — — 141 Prepaid and other current assets — 15 29 — 44 — — — 44 Total current assets — 677 598 — 1,275 — — — 1,275 Due from (to) parent companies 418 96 (514 ) — — — — — — Investments in and advances to consolidated subsidiaries 2,721 1,312 — (4,033 ) — 377 377 (754 ) — Royalty advances expected to be recouped after one year — 109 63 — 172 — — — 172 Property, plant and equipment, net — 139 74 — 213 — — — 213 Goodwill — 1,368 317 — 1,685 — — — 1,685 Intangible assets subject to amortization, net — 1,029 1,061 — 2,090 — — — 2,090 Intangible assets not subject to amortization — 71 46 — 117 — — — 117 Deferred tax assets, net — 89 8 — 97 — — — 97 Other assets 7 45 17 — 69 — — — 69 Total assets $ 3,146 $ 4,935 $ 1,670 $ (4,033 ) $ 5,718 $ 377 $ 377 $ (754 ) $ 5,718 Liabilities and Deficit: Current liabilities: Accounts payable $ — $ 135 $ 73 $ — $ 208 $ — $ — $ — $ 208 Accrued royalties — 732 531 — 1,263 — — — 1,263 Accrued liabilities — 144 221 — 365 — — — 365 Accrued interest 41 — — — 41 — — — 41 Deferred revenue — 125 72 — 197 — — — 197 Other current liabilities — 3 23 — 26 — — — 26 Total current liabilities 41 1,139 920 — 2,100 — — — 2,100 Long-term debt 2,811 — — — 2,811 — — — 2,811 Deferred tax liabilities, net — — 190 — 190 — — — 190 Other noncurrent liabilities 1 196 112 — 309 — — — 309 Total liabilities 2,853 1,335 1,222 — 5,410 — — — 5,410 Total Warner Music Group Corp. equity 293 3,596 437 (4,033 ) 293 377 377 (754 ) 293 Noncontrolling interest — 4 11 — 15 — — — 15 Total equity 293 3,600 448 (4,033 ) 308 377 377 (754 ) 308 Total liabilities and equity $ 3,146 $ 4,935 $ 1,670 $ (4,033 ) $ 5,718 $ 377 $ 377 $ (754 ) $ 5,718 Consolidating Statement of Operations (Unaudited) For The Three Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 535 $ 549 $ (121 ) $ 963 $ — $ — $ — $ 963 Costs and expenses: Cost of revenue — (242 ) (327 ) 81 (488 ) — — — (488 ) Selling, general and administrative expenses — (244 ) (135 ) 42 (337 ) — — — (337 ) Amortization of intangible assets — (23 ) (32 ) — (55 ) — — — (55 ) Total costs and expenses — (509 ) (494 ) 123 (880 ) — — — (880 ) Operating income — 26 55 2 83 — — — 83 Loss on extinguishment of debt (23 ) — — — (23 ) — — — (23 ) Interest expense, net (31 ) — (5 ) — (36 ) — — — (36 ) Equity gains (losses) from equity method investments 66 33 — (99 ) — (3 ) (3 ) 6 — Other expense, net 4 (1 ) (9 ) — (6 ) — — — (6 ) Income (loss) before income taxes 16 58 41 (97 ) 18 (3 ) (3 ) 6 18 Income tax (expense) benefit (19 ) (18 ) (18 ) 36 (19 ) — — — (19 ) Net (loss) income (3 ) 40 23 (61 ) (1 ) (3 ) (3 ) 6 (1 ) Less: income attributable to noncontrolling interest — (1 ) (1 ) — (2 ) — — — (2 ) Net (loss) income attributable to Warner Music Group Corp. $ (3 ) $ 39 $ 22 $ (61 ) $ (3 ) $ (3 ) $ (3 ) $ 6 $ (3 ) Consolidating Statement of Operations (Unaudited) For The Three Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 470 $ 439 $ (84 ) $ 825 $ — $ — $ — $ 825 Costs and expenses: Cost of revenue — (204 ) (268 ) 57 (415 ) — — — (415 ) Selling, general and administrative expenses — (199 ) (110 ) 27 (282 ) — — — (282 ) Amortization of intangible assets — (26 ) (24 ) — (50 ) — — — (50 ) Total costs and expenses — (429 ) (402 ) 84 (747 ) — — — (747 ) Operating income — 41 37 — 78 — — — 78 Interest (expense) income, net (21 ) 1 (16 ) — (36 ) — — — (36 ) Equity gains (losses) from equity method investments 49 11 — (60 ) — 19 19 (38 ) — Other expense, net (6 ) — (13 ) — (19 ) — — — (19 ) Income before income taxes 22 53 8 (60 ) 23 19 19 (38 ) 23 Income tax (expense) benefit (3 ) (4 ) (7 ) 11 (3 ) — — — (3 ) Net income 19 49 1 (49 ) 20 19 19 (38 ) 20 Less: income attributable to noncontrolling interest — — (1 ) — (1 ) — — — (1 ) Net income attributable to Warner Music Group Corp. $ 19 $ 49 $ — $ (49 ) $ 19 $ 19 $ 19 $ (38 ) $ 19 Consolidating Statement of Operations (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 1,082 $ 1,170 $ (244 ) $ 2,008 $ — $ — $ — $ 2,008 Costs and expenses: Cost of revenue — (499 ) (720 ) 162 (1,057 ) — — — (1,057 ) Selling, general and administrative expenses — (479 ) (273 ) 82 (670 ) — — — (670 ) Amortization of intangible assets — (47 ) (61 ) — (108 ) — — — (108 ) Total costs and expenses — (1,025 ) (1,054 ) 244 (1,835 ) — — — (1,835 ) Operating income — 57 116 — 173 — — — 173 Loss on extinguishment of debt (24 ) — — — (24 ) — — — (24 ) Interest (expense) income, net (60 ) 1 (13 ) — (72 ) — — — (72 ) Equity gains (losses) from equity method investments 156 76 — (232 ) — 1 1 (2 ) — Other expense, net — 9 (11 ) — (2 ) — — — (2 ) Income before income taxes 72 143 92 (232 ) 75 1 1 (2 ) 75 Income tax (expense) benefit (71 ) (69 ) (28 ) 97 (71 ) — — — (71 ) Net income (loss) 1 74 64 (135 ) 4 1 1 (2 ) 4 Less: income attributable to noncontrolling interest — (1 ) (2 ) — (3 ) — — — (3 ) Net income attributable to Warner Music Group Corp. $ 1 $ 73 $ 62 $ (135 ) $ 1 $ 1 $ 1 $ (2 ) $ 1 Consolidating Statement of Operations (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 960 $ 960 $ (178 ) $ 1,742 $ — $ — $ — $ 1,742 Costs and expenses: Cost of revenue — (424 ) (609 ) 122 (911 ) — — — (911 ) Selling, general and administrative expenses (1 ) (375 ) (238 ) 56 (558 ) — — — (558 ) Amortization of intangible assets — (51 ) (50 ) — (101 ) — — — (101 ) Total costs and expenses (1 ) (850 ) (897 ) 178 (1,570 ) — — — (1,570 ) Operating (loss) income (1 ) 110 63 — 172 — — — 172 Loss on extinguishment of debt (32 ) — — — (32 ) — — — (32 ) Interest (expense) income, net (44 ) 2 (34 ) — (76 ) — — — (76 ) Equity gains (losses) from equity method investments 132 51 — (183 ) — 41 41 (82 ) — Other income (expense), net 6 3 (9 ) — — — — — — Income before income taxes 61 166 20 (183 ) 64 41 41 (82 ) 64 Income tax (expense) benefit (20 ) (22 ) (16 ) 38 (20 ) — — — (20 ) Net income 41 144 4 (145 ) 44 41 41 (82 ) 44 Less: income attributable to noncontrolling interest — — (3 ) — (3 ) — — — (3 ) Net income attributable to Warner Music Group Corp. $ 41 $ 144 $ 1 $ (145 ) $ 41 $ 41 $ 41 $ (82 ) $ 41 Consolidating Statement of Comprehensive Income (Unaudited) For The Three Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net (loss) income $ (3 ) $ 40 $ 23 $ (61 ) $ (1 ) $ (3 ) $ (3 ) $ 6 $ (1 ) Other comprehensive income (loss), net of tax: Foreign currency adjustment 9 — (9 ) 9 9 9 9 (18 ) 9 Deferred gains on derivative financial instruments 1 — 1 (1 ) 1 1 1 (2 ) 1 Other comprehensive income (loss), net of tax: 10 — (8 ) 8 10 10 10 (20 ) 10 Total comprehensive income 7 40 15 (53 ) 9 7 7 (14 ) 9 Less: income attributable to noncontrolling interest — (1 ) (1 ) — (2 ) — — — (2 ) Comprehensive income attributable to Warner Music Group Corp. $ 7 $ 39 $ 14 $ (53 ) $ 7 $ 7 $ 7 $ (14 ) $ 7 Consolidating Statement of Comprehensive Income (Unaudited) For The Three Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income $ 19 $ 49 $ 1 $ (49 ) $ 20 $ 19 $ 19 $ (38 ) $ 20 Other comprehensive income, net of tax: Foreign currency adjustment 24 — (50 ) 50 24 24 24 (48 ) 24 Deferred gains on derivative financial instruments 1 1 — (1 ) 1 1 1 (2 ) 1 Other comprehensive income, net of tax: 25 1 (50 ) 49 25 25 25 (50 ) 25 Total comprehensive income 44 50 (49 ) — 45 44 44 (88 ) 45 Less: income attributable to noncontrolling interest — — (1 ) — (1 ) — — — (1 ) Comprehensive income (loss) attributable to Warner Music Group Corp. $ 44 $ 50 $ (50 ) $ — $ 44 $ 44 $ 44 $ (88 ) $ 44 Consolidating Statement of Comprehensive Income (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income (loss) $ 1 $ 74 $ 64 $ (135 ) $ 4 $ 1 $ 1 $ (2 ) $ 4 Other comprehensive income (loss), net of tax: Foreign currency adjustment 18 — (18 ) 18 18 18 18 (36 ) 18 Deferred losses on derivative financial instruments 2 — — — 2 2 2 (4 ) 2 Other comprehensive income (loss), net of tax: 20 — (18 ) 18 20 20 20 (40 ) 20 Total comprehensive income (loss) 21 74 46 (117 ) 24 21 21 (42 ) 24 Less: income attributable to noncontrolling interest — (1 ) (2 ) — (3 ) — — — (3 ) Comprehensive income attributable to Warner Music Group Corp. $ 21 $ 73 $ 44 $ (117 ) $ 21 $ 21 $ 21 $ (42 ) $ 21 Consolidating Statement of Comprehensive Income (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income $ 41 $ 144 $ 4 $ (145 ) $ 44 $ 41 $ 41 $ (82 ) $ 44 Other comprehensive (loss) income, net of tax: Foreign currency adjustment (13 ) — (13 ) 13 (13 ) (13 ) (13 ) 26 (13 ) Deferred losses on derivative financial instruments (1 ) (1 ) — 1 (1 ) (1 ) (1 ) 2 (1 ) Other comprehensive (loss) income, net of tax: (14 ) (1 ) (13 ) 14 (14 ) (14 ) (14 ) 28 (14 ) Total comprehensive income (loss) 27 143 (9 ) (131 ) 30 27 27 (54 ) 30 Less: income attributable to noncontrolling interest — — (3 ) — (3 ) — — — (3 ) Comprehensive income (loss) attributable to Warner Music Group Corp. $ 27 $ 143 $ (12 ) $ (131 ) $ 27 $ 27 $ 27 $ (54 ) $ 27 Consolidating Statement of Cash Flows (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Cash flows from operating activities Net income (loss) $ 1 $ 74 $ 64 $ (135 ) $ 4 $ 1 $ 1 $ (2 ) $ 4 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization — 67 67 — 134 — — — 134 Unrealized losses and remeasurement of foreign denominated loans 17 3 (9 ) — 11 — — — 11 Deferred income taxes — — 38 — 38 — — — 38 Loss on extinguishment of debt 24 — — — 24 — — — 24 Net (gain) loss on divestitures and investments — (7 ) — — (7 ) — — — (7 ) Non-cash interest expense 3 — — — 3 — — — 3 Equity-based compensation expense — 27 — — 27 — — — 27 Equity (gains) losses, including distributions (156 ) (76 ) — 232 — (1 ) (1 ) 2 — Changes in operating assets and liabilities: Accounts receivable — (16 ) 1 — (15 ) — — — (15 ) Inventories — (1 ) 2 — 1 — — — 1 Royalty advances — (20 ) 8 — (12 ) — — — (12 ) Accounts payable and accrued liabilities — 101 (104 ) (97 ) (100 ) — — — (100 ) Royalty payables — 48 20 — 68 — — — 68 Accrued interest (14 ) — — — (14 ) — — — (14 ) Deferred revenue — 9 (25 ) — (16 ) — — — (16 ) Other balance sheet changes (4 ) 43 (49 ) — (10 ) — — — (10 ) Net cash provided (used in) by operating activities (129 ) 252 13 — 136 — — — 136 Cash flows from investing activities Acquisition of music publishing rights, net — (4 ) (1 ) — (5 ) — — — (5 ) Capital expenditures — (23 ) (6 ) — (29 ) — — — (29 ) Investments and acquisitions of businesses, net — (6 ) — — (6 ) — — — (6 ) Proceeds from the sale of investments — 12 — — 12 — — — 12 Advances from issuer 151 — — (151 ) — — — — — Net cash (used in) provided by investing activities 151 (21 ) (7 ) (151 ) (28 ) — — — (28 ) Cash flows from financing activities Proceeds from issuance of Acquisition Corp. 5.50% Senior Notes 325 — — — 325 — — — 325 Proceeds from supplement of Acquisition Corp. Senior Term Loan Facility 320 — — — 320 — — — 320 Repayment of and redemption deposit for Acquisition Corp. 6.75% Senior Notes (635 ) — — — (635 ) — — — (635 ) Call premiums paid on and redemption deposit for early redemption of debt (23 ) — — — (23 ) — — — (23 ) Deferred financing costs paid (9 ) — — — (9 ) — — — (9 ) Distribution to noncontrolling interest holder — — (2 ) — (2 ) — — — (2 ) Dividends paid — (98 ) (27 ) — (125 ) — — — (125 ) Change in due to (from) issuer — (151 ) — 151 — — — — — Net cash (used in) provided by financing activities (22 ) (249 ) (29 ) 151 (149 ) — — — (149 ) Effect of exchange rate changes on cash and equivalents — — 6 — 6 — — — 6 Net decrease in cash and equivalents — (18 ) (17 ) — (35 ) — — — (35 ) Cash and equivalents at beginning of period — 347 300 — 647 — — — 647 Cash and equivalents at end of period $ — $ 329 $ 283 $ — $ 612 $ — $ — $ — $ 612 Consolidating Statement of Cash Flows (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Cash flows from operating activities Net income $ 41 $ 144 $ 4 $ (145 ) $ 44 $ 41 $ 41 $ (82 ) $ 44 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization — 70 56 — 126 — — — 126 Unrealized (gains)/losses and remeasurement of foreign denominated loans (11 ) (3 ) 13 — (1 ) — — — (1 ) Deferred income taxes 2 2 (12 ) (4 ) (12 ) — — — (12 ) Loss on extinguishment of debt 32 — — — 32 — — — 32 Net loss on divestiture and investments — 5 1 — 6 — — — 6 Non-cash interest expense 5 — — — 5 — — — 5 Equity-based compensation expense — 17 — — 17 — — — 17 Equity (gains) losses, including distributions (132 ) (51 ) — 183 — (41 ) (41 ) 82 — Changes in operating assets and liabilities: Accounts receivable — (2 ) (39 ) — (41 ) — — — (41 ) Inventories — 2 1 — 3 — — — 3 Royalty advances — (4 ) 5 — 1 — — — 1 Accounts payable and accrued liabilities — (5 ) (4 ) (34 ) (43 ) — — — (43 ) Royalty payables — 54 21 — 75 — — — 75 Accrued interest 7 — — — 7 — — — 7 Deferred revenue — (34 ) 30 — (4 ) — — — (4 ) Other balance sheet changes 7 10 (6 ) — 11 — — — 11 Net cash (used in) provided by operating activities (49 ) 205 70 — 226 — — — 226 Cash flows from investing activities Acquisition of music publishing rights, net — (3 ) (3 ) — (6 ) — — — (6 ) Capital expenditures — (13 ) (5 ) — (18 ) — — — (18 ) Investments and acquisitions of businesses, net — (5 ) (1 ) — (6 ) — — — (6 ) Divestitures, net — 7 11 — 18 — — — 18 Advances to issuer 87 — — (87 ) — — — — — Net cash provided (used in) by investing activities 87 (14 ) 2 (87 ) (12 ) — — — (12 ) Cash flows from financing activities Proceeds from issuance of Acquisition Corp. 4.125% Senior Secured Notes 380 — — — 380 — — — 380 Proceeds from issuance of Acquisition Corp. 4.875% Senior Secured Notes 250 — — — 250 — — — 250 Proceeds from issuance of Acquisition Corp. Senior Term Loan Facility 22 — — — 22 — — — 22 Repayment of Acquisition Corp. 6.00% Senior Secured Notes (450 ) — — — (450 ) — — — (450 ) Repayment of Acquisition Corp. 6.25% Senior Secured Notes (173 ) — — — (173 ) — — — (173 ) Repayment of Acquisition Corp. 5.625% Senior Secured Notes (28 ) — — — (28 ) — — — (28 ) Call premiums paid on early redemption of debt (27 ) — — — (27 ) — — — (27 ) Deferred financing costs paid (12 ) — — — (12 ) — — — (12 ) Distribution to noncontrolling interest holder — — (1 ) — (1 ) — — — (1 ) Dividends paid — (54 ) — — (54 ) — — — (54 ) Change in due to (from) issuer — (87 ) — 87 — — — — — Net cash (used in) provided by financing activities (38 ) (141 ) (1 ) 87 (93 ) — — — (93 ) Effect of exchange rate changes on cash and equivalents — — (4 ) — (4 ) — — — (4 ) Net increase in cash and equivalents — 50 67 — 117 — — — 117 Cash and equivalents at beginning of period — 180 179 — 359 — — — 359 Cash and equivalents at end of period $ — $ 230 $ 246 $ — $ 476 $ — $ — $ — $ 476

Summary of Significant Accoun23

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Interim Financial Statements	Interim Financial Statements The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six month period ended March 31, 2018 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2018. The consolidated balance sheet at September 30, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2017 (File No. 001-32502).
Basis of Consolidation	Basis of Consolidation The accompanying financial statements present the consolidated accounts of all entities in which the Company has a controlling voting interest and/or variable interest required to be consolidated in accordance with U.S. GAAP. All intercompany balances and transactions have been eliminated. Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation The Company maintains a 52-53 week fiscal year ending on the last Friday in each reporting period. As such, all references to March 31, 2018 and March 31, 2017 relate to the periods ended March 30, 2018 and March 31, 2017, respectively. For convenience purposes, the Company continues to date its financial statements as of March 31. The fiscal year ended September 30, 2017 ended on September 29, 2017. The Company has performed a review of all subsequent events through the date the financial statements were issued, and has determined that no additional disclosures are necessary.
Income Taxes	Income Taxes At the end of each interim period, the Company makes its best estimate of the effective tax rate expected to be applicable for the full fiscal year and uses that rate to provide for income taxes on a current year-to-date basis before discrete items. If a reliable estimate of the annual effective tax rate cannot be made, which could be caused by the significant variability in rates when marginal earnings are expected for the year, a discrete tax rate is calculated for the period. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). In accordance with ASC Topic 740, Income Taxes (“ASC 740”) the Company recorded the impacts in the period of enactment.
New Accounting Pronouncements	New Accounting Pronouncements In October 2017, the Company adopted ASU 2016-09, Compensation - Stock Compensation The adoption of ASU 2016-09 did not have any effect on the Company’s consolidated financial statements and footnote disclosures as of March 31, 2018 In May 2014, the FASB issued guidance codified in ASC 606, Revenue from Contracts with Customers (“ASC 606”), which replaces the guidance in former ASC 605, Revenue Recognition and ASC 928-605, Entertainment – Music. The amendment was the result of a joint effort by the FASB and the International Accounting Standards Board to improve financial reporting by creating common revenue recognition guidance for U.S. GAAP and international financial reporting standards ("IFRS"). The joint project clarifies the principles for recognizing revenue and develops a common revenue standard for U.S. GAAP and IFRS. ASC 606 is effective for annual periods beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The update may be applied using one of two methods: retrospective application to each prior reporting period presented, or retrospective application with the cumulative effect of initially applying the update recognized at the date of initial application. The Company currently plans to adopt this ASU under the modified retrospective method. While the Company is currently evaluating the impact of adoption of this new standard on the consolidated financial statements, the Company believes the most significant impact will be a change in the timing of revenue recognition in our Music Publishing segment. The Company generally records revenue from the licensing of publishing rights when cash is received. Under the new revenue recognition rules, revenues will be recorded based on best estimates available in the period of sales or usage. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments In October 2016, the FASB issued ASU 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory In August 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities In February 2018, FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income In March 2018, the FASB issued ASU 2018-5, Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	6 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss	Comprehensive income (loss), which is reported in the accompanying consolidated statements of equity, consists of net income (loss) and other gains and losses affecting equity that, under U.S. GAAP, are excluded from net income (loss). For the Company, the components of other comprehensive income (loss) primarily consist of foreign currency translation gains and losses and minimum pension liabilities. The following summary sets forth the changes in the components of accumulated other comprehensive loss, net of related taxes of less than $1 million: Foreign Minimum Deferred Income Accumulated Currency Pension On Derivative Other Translation Liability Financial Comprehensive (Loss) Gain (a) Adjustment Instruments Loss, net (in millions) Balance at September 30, 2017 $ (171 ) $ (10 ) $ — $ (181 ) Other comprehensive income 18 — 2 20 Amounts reclassified from accumulated other comprehensive income — — — — Balance at March 31, 2018 $ (153 ) $ (10 ) $ 2 $ (161 ) (a) Includes historical foreign currency translation related to certain intra-entity transactions that are no longer considered of a long-term investment nature.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Goodwill for Each Reportable Segment	The following analysis details the changes in goodwill for each reportable segment: Recorded Music Music Publishing Total (in millions) Balance at September 30, 2017 $ 1,221 $ 464 $ 1,685 Acquisitions — — — Divestitures — — — Other adjustments (a) 11 — 11 Balance at March 31, 2018 $ 1,232 $ 464 $ 1,696 (a) Other adjustments during the six months ended March 31, 2018 represent foreign currency movements.
Schedule of Intangible Assets	Intangible assets consist of the following: Weighted Average March 31, September 30, Useful Life 2018 2017 (in millions) Intangible assets subject to amortization: Recorded music catalog 10 years $ 920 $ 898 Music publishing copyrights 27 years 1,564 1,534 Artist and songwriter contracts 13 years 924 904 Trademarks 6 years 14 14 Other intangible assets 7 years 17 10 Total gross intangible asset subject to amortization 3,439 3,360 Accumulated amortization (1,402 ) (1,270 ) Total net intangible assets subject to amortization 2,037 2,090 Intangible assets not subject to amortization: Trademarks and tradenames Indefinite 118 117 Total net intangible assets $ 2,155 $ 2,207

Debt (Tables)

Debt (Tables)	6 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Long-term Debt	Long-term debt consists of the following: March 31, September 30, 2018 2017 (in millions) Revolving Credit Facility—Acquisition Corp. (a) $ — $ — Senior Term Loan Facility due 2023—Acquisition Corp. (b) 1,307 990 5.625% Senior Secured Notes due 2022—Acquisition Corp. (c) 246 246 5.00% Senior Secured Notes due 2023—Acquisition Corp. (d) 297 297 4.125% Senior Secured Notes due 2024— Acquisition Corp. (e) 419 402 4.875% Senior Secured Notes due 2024— Acquisition Corp. (f) 247 246 6.75% Senior Notes due 2022—Acquisition Corp. (g) 111 630 5.50% Senior Notes due 2026—Acquisition Corp. (h) 320 — Total debt (i) 2,947 2,811 Less: current portion 111 — Total long-term debt $ 2,836 $ 2,811 (a) Reflects $180 million and $150 million of commitments under the Revolving Credit Facility at March 31, 2018 and September 30, 2017, respectively, less letters of credit outstanding of approximately $12 million at both March 31, 2018 and September 30, 2017. There were no loans outstanding under the Revolving Credit Facility at March 31, 2018 or September 30, 2017. (b) Principal amount of $1.326 billion and $1.006 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $14 million and $10 million at March 31, 2018 and September 30, 2017, respectively. (c) Principal amount of $248 million less unamortized deferred financing costs of $2 million at both March 31, 2018 and September 30, 2017. (d) Principal amount of $300 million less unamortized deferred financing costs of $3 million at both March 31, 2018 and September 30, 2017. (e) Face amount of €345 million. Above amounts represent the dollar equivalent of such notes at March 31, 2018 and September 30, 2017. Principal amount of $424 million and $407 million at March 31, 2018 and September 30, 2017, respectively, less unamortized deferred financing costs of $5 million at both March 31, 2018 and September 30, 2017. (f) Principal amount of $250 million at both March 31, 2018 and September 30, 2017 less unamortized deferred financing costs of $3 million and $4 million at March 31, 2018 and September 30, 2017, respectively. (g) Principal amount of $112 million and $635 million less unamortized deferred financing costs of $1 million and $5 million at March 31, 2018 and September 30, 2017, respectively. Reflects amount not redeemed as of March 31, 2018 as described below under “Tender Offer and Notes Redemption.” The remaining 6.75% Senior Notes were redeemed on April 15, 2018. (h) Principal amount of $325 million less unamortized deferred financing costs of $5 million at March 31, 2018. (i) Principal amount of debt of $2.985 billion and $2.846 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $33 million and $29 million at March 31, 2018 and September 30, 2017, respectively.

Derivative Financial Instrume27

Derivative Financial Instruments (Tables)	6 Months Ended
	Mar. 31, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Amounts Recorded in Consolidated Balance Sheet	The following is a summary of amounts recorded in the Consolidated Balance Sheet pertaining to the Company’s designated cash flows hedges at March 31, 2018 and September 30, 2017: March 31, September 30, 2018 (a) 2017 (in millions) Other current assets $ 2 $ — Other current liabilities 3 — Other noncurrent assets — — Other noncurrent liabilities 1 —

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Schedule of Segment Information	The accounting policies of the Company’s business segments are the same as those described in the summary of significant accounting policies included elsewhere herein. The Company accounts for intersegment sales at fair value as if the sales were to third parties. While intercompany transactions are treated like third-party transactions to determine segment performance, the revenues (and corresponding expenses recognized by the segment that is counterparty to the transaction) are eliminated in consolidation, and therefore, do not themselves impact consolidated results. Corporate Recorded Music expenses and Music Publishing eliminations Total Three Months Ended (in millions) March 31, 2018 Revenues $ 791 $ 174 $ (2 ) $ 963 Operating income (loss) 80 41 (38 ) 83 Amortization of intangible assets 38 17 — 55 Depreciation of property, plant and equipment 9 2 3 14 OIBDA 127 60 (35 ) 152 March 31, 2017 Revenues $ 686 $ 145 $ (6 ) $ 825 Operating income (loss) 69 41 (32 ) 78 Amortization of intangible assets 34 16 — 50 Depreciation of property, plant and equipment 9 1 3 13 OIBDA 112 58 (29 ) 141 Corporate Recorded Music expenses and Music Publishing eliminations Total Six Months Ended (in millions) March 31, 2018 Revenues $ 1,695 $ 317 $ (4 ) $ 2,008 Operating income (loss) 209 40 (76 ) 173 Amortization of intangible assets 74 34 — 108 Depreciation of property, plant and equipment 17 3 6 26 OIBDA 300 77 (70 ) 307 March 31, 2017 Revenues $ 1,483 $ 269 $ (10 ) $ 1,742 Operating income (loss) 192 39 (59 ) 172 Amortization of intangible assets 69 32 — 101 Depreciation of property, plant and equipment 16 3 6 25 OIBDA 277 74 (53 ) 298

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Financial Instruments	In accordance with the fair value hierarchy, described above, the following table shows the fair value of the Company’s financial instruments that are required to be measured at fair value as of March 31, 2018 and September 30, 2017. Fair Value Measurements as of March 31, 2018 (Level 1) (Level 2) (Level 3) Total (in millions) Other Current Assets: Foreign Currency Forward Exchange Contracts (a) $ — $ 2 $ — $ 2 Other Current Liabilities: Foreign Currency Forward Exchange Contracts (a) — (3 ) — (3 ) Other Current Liabilities: Contractual Obligations (b) — — — — Other Non-Current Liabilities: Contractual Obligations (b) — — (6 ) (6 ) Interest Rate Swap (c) — (1 ) — (1 ) Total $ — $ (2 ) $ (6 ) $ (8 ) Fair Value Measurements as of September 30, 2017 (Level 1) (Level 2) (Level 3) Total (in millions) Other Current Liabilities: Contractual Obligations (b) — — — — Other Non-Current Liabilities: Contractual Obligations (b) — — (5 ) (5 ) Total $ — $ — $ (5 ) $ (5 ) (a) The fair value of foreign currency forward exchange contracts is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay at their maturity dates for contracts involving the same currencies and maturity dates. (b) This represents purchase obligations and contingent consideration related to the Company’s various acquisitions. This is based on a discounted cash flow approach and it is adjusted to fair value on a recurring basis and any adjustments are included as a component of operating income in the statement of operations. These amounts were mainly calculated using unobservable inputs such as future earnings performance of the Company’s various acquisitions and the expected timing of the payment. (c) The fair value of the interest rate swap is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay as of March 31, 2018 for contracts involving the same attributes and maturity dates.
Reconciliation of Net Liabilities Classified as Level 3	The following table reconciles the beginning and ending balances of net assets and liabilities classified as Level 3: Total (in millions) Balance at September 30, 2017 (5 ) Additions (1 ) Reductions — Payments — Balance at March 31, 2018 $ (6 )

Guarantor and Non-Guarantor S30

Guarantor and Non-Guarantor Subsidiaries Financial Information Unaudited (Tables)	6 Months Ended
	Mar. 31, 2018
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Schedule of Consolidating Balance Sheet	Consolidating Balance Sheet (Unaudited) March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Assets: Current assets: Cash and equivalents $ — $ 329 $ 283 $ — $ 612 $ — $ — $ — $ 612 Redemption deposit 119 — — — 119 — — — 119 Accounts receivable, net — 230 197 — 427 — — — 427 Inventories — 14 25 — 39 — — — 39 Royalty advances expected to be recouped within one year — 98 50 — 148 — — — 148 Prepaid and other current assets — 12 50 — 62 — — — 62 Total current assets 119 683 605 — 1,407 — — — 1,407 Due (to) from parent companies 518 (49 ) (469 ) — — — — — — Investments in and advances to consolidated subsidiaries 2,520 1,630 — (4,150 ) — 398 398 (796 ) — Royalty advances expected to be recouped after one year — 120 61 — 181 — — — 181 Property, plant and equipment, net — 138 76 — 214 — — — 214 Goodwill — 1,368 328 — 1,696 — — — 1,696 Intangible assets subject to amortization, net — 992 1,045 — 2,037 — — — 2,037 Intangible assets not subject to amortization — 71 47 — 118 — — — 118 Deferred tax assets, net — 44 8 — 52 — — — 52 Other assets 8 50 19 — 77 — — — 77 Total assets $ 3,165 $ 5,047 $ 1,720 $ (4,150 ) $ 5,782 $ 398 $ 398 $ (796 ) $ 5,782 Liabilities and Deficit: Current liabilities: Accounts payable $ 1 $ 126 $ 76 $ — $ 203 $ — $ — $ — $ 203 Accrued royalties — 785 573 — 1,358 — — — 1,358 Accrued liabilities — 155 185 — 340 — — — 340 Accrued interest 27 — — — 27 — — — 27 Deferred revenue — 146 51 — 197 — — — 197 Current portion of long-term debt 111 — — — 111 — — — 111 Other current liabilities — 5 32 — 37 — — — 37 Total current liabilities 139 1,217 917 — 2,273 — — — 2,273 Long-term debt 2,836 — — — 2,836 — — — 2,836 Deferred tax liabilities, net — — 194 — 194 — — — 194 Other noncurrent liabilities 1 156 117 — 274 — — — 274 Total liabilities 2,976 1,373 1,228 — 5,577 — — — 5,577 Total Warner Music Group Corp. equity 189 3,669 481 (4,150 ) 189 398 398 (796 ) 189 Noncontrolling interest — 5 11 — 16 — — — 16 Total equity 189 3,674 492 (4,150 ) 205 398 398 (796 ) 205 Total liabilities and equity $ 3,165 $ 5,047 $ 1,720 $ (4,150 ) $ 5,782 $ 398 $ 398 $ (796 ) $ 5,782 Consolidating Balance Sheet September 30, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Assets: Current assets: Cash and equivalents $ — $ 347 $ 300 $ — $ 647 $ — $ — $ — $ 647 Accounts receivable, net — 214 190 — 404 — — — 404 Inventories — 12 27 — 39 — — — 39 Royalty advances expected to be recouped within one year — 89 52 — 141 — — — 141 Prepaid and other current assets — 15 29 — 44 — — — 44 Total current assets — 677 598 — 1,275 — — — 1,275 Due from (to) parent companies 418 96 (514 ) — — — — — — Investments in and advances to consolidated subsidiaries 2,721 1,312 — (4,033 ) — 377 377 (754 ) — Royalty advances expected to be recouped after one year — 109 63 — 172 — — — 172 Property, plant and equipment, net — 139 74 — 213 — — — 213 Goodwill — 1,368 317 — 1,685 — — — 1,685 Intangible assets subject to amortization, net — 1,029 1,061 — 2,090 — — — 2,090 Intangible assets not subject to amortization — 71 46 — 117 — — — 117 Deferred tax assets, net — 89 8 — 97 — — — 97 Other assets 7 45 17 — 69 — — — 69 Total assets $ 3,146 $ 4,935 $ 1,670 $ (4,033 ) $ 5,718 $ 377 $ 377 $ (754 ) $ 5,718 Liabilities and Deficit: Current liabilities: Accounts payable $ — $ 135 $ 73 $ — $ 208 $ — $ — $ — $ 208 Accrued royalties — 732 531 — 1,263 — — — 1,263 Accrued liabilities — 144 221 — 365 — — — 365 Accrued interest 41 — — — 41 — — — 41 Deferred revenue — 125 72 — 197 — — — 197 Other current liabilities — 3 23 — 26 — — — 26 Total current liabilities 41 1,139 920 — 2,100 — — — 2,100 Long-term debt 2,811 — — — 2,811 — — — 2,811 Deferred tax liabilities, net — — 190 — 190 — — — 190 Other noncurrent liabilities 1 196 112 — 309 — — — 309 Total liabilities 2,853 1,335 1,222 — 5,410 — — — 5,410 Total Warner Music Group Corp. equity 293 3,596 437 (4,033 ) 293 377 377 (754 ) 293 Noncontrolling interest — 4 11 — 15 — — — 15 Total equity 293 3,600 448 (4,033 ) 308 377 377 (754 ) 308 Total liabilities and equity $ 3,146 $ 4,935 $ 1,670 $ (4,033 ) $ 5,718 $ 377 $ 377 $ (754 ) $ 5,718
Schedule of Consolidating Statement of Operations	Consolidating Statement of Operations (Unaudited) For The Three Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 535 $ 549 $ (121 ) $ 963 $ — $ — $ — $ 963 Costs and expenses: Cost of revenue — (242 ) (327 ) 81 (488 ) — — — (488 ) Selling, general and administrative expenses — (244 ) (135 ) 42 (337 ) — — — (337 ) Amortization of intangible assets — (23 ) (32 ) — (55 ) — — — (55 ) Total costs and expenses — (509 ) (494 ) 123 (880 ) — — — (880 ) Operating income — 26 55 2 83 — — — 83 Loss on extinguishment of debt (23 ) — — — (23 ) — — — (23 ) Interest expense, net (31 ) — (5 ) — (36 ) — — — (36 ) Equity gains (losses) from equity method investments 66 33 — (99 ) — (3 ) (3 ) 6 — Other expense, net 4 (1 ) (9 ) — (6 ) — — — (6 ) Income (loss) before income taxes 16 58 41 (97 ) 18 (3 ) (3 ) 6 18 Income tax (expense) benefit (19 ) (18 ) (18 ) 36 (19 ) — — — (19 ) Net (loss) income (3 ) 40 23 (61 ) (1 ) (3 ) (3 ) 6 (1 ) Less: income attributable to noncontrolling interest — (1 ) (1 ) — (2 ) — — — (2 ) Net (loss) income attributable to Warner Music Group Corp. $ (3 ) $ 39 $ 22 $ (61 ) $ (3 ) $ (3 ) $ (3 ) $ 6 $ (3 ) Consolidating Statement of Operations (Unaudited) For The Three Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 470 $ 439 $ (84 ) $ 825 $ — $ — $ — $ 825 Costs and expenses: Cost of revenue — (204 ) (268 ) 57 (415 ) — — — (415 ) Selling, general and administrative expenses — (199 ) (110 ) 27 (282 ) — — — (282 ) Amortization of intangible assets — (26 ) (24 ) — (50 ) — — — (50 ) Total costs and expenses — (429 ) (402 ) 84 (747 ) — — — (747 ) Operating income — 41 37 — 78 — — — 78 Interest (expense) income, net (21 ) 1 (16 ) — (36 ) — — — (36 ) Equity gains (losses) from equity method investments 49 11 — (60 ) — 19 19 (38 ) — Other expense, net (6 ) — (13 ) — (19 ) — — — (19 ) Income before income taxes 22 53 8 (60 ) 23 19 19 (38 ) 23 Income tax (expense) benefit (3 ) (4 ) (7 ) 11 (3 ) — — — (3 ) Net income 19 49 1 (49 ) 20 19 19 (38 ) 20 Less: income attributable to noncontrolling interest — — (1 ) — (1 ) — — — (1 ) Net income attributable to Warner Music Group Corp. $ 19 $ 49 $ — $ (49 ) $ 19 $ 19 $ 19 $ (38 ) $ 19 Consolidating Statement of Operations (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 1,082 $ 1,170 $ (244 ) $ 2,008 $ — $ — $ — $ 2,008 Costs and expenses: Cost of revenue — (499 ) (720 ) 162 (1,057 ) — — — (1,057 ) Selling, general and administrative expenses — (479 ) (273 ) 82 (670 ) — — — (670 ) Amortization of intangible assets — (47 ) (61 ) — (108 ) — — — (108 ) Total costs and expenses — (1,025 ) (1,054 ) 244 (1,835 ) — — — (1,835 ) Operating income — 57 116 — 173 — — — 173 Loss on extinguishment of debt (24 ) — — — (24 ) — — — (24 ) Interest (expense) income, net (60 ) 1 (13 ) — (72 ) — — — (72 ) Equity gains (losses) from equity method investments 156 76 — (232 ) — 1 1 (2 ) — Other expense, net — 9 (11 ) — (2 ) — — — (2 ) Income before income taxes 72 143 92 (232 ) 75 1 1 (2 ) 75 Income tax (expense) benefit (71 ) (69 ) (28 ) 97 (71 ) — — — (71 ) Net income (loss) 1 74 64 (135 ) 4 1 1 (2 ) 4 Less: income attributable to noncontrolling interest — (1 ) (2 ) — (3 ) — — — (3 ) Net income attributable to Warner Music Group Corp. $ 1 $ 73 $ 62 $ (135 ) $ 1 $ 1 $ 1 $ (2 ) $ 1 Consolidating Statement of Operations (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Revenues $ — $ 960 $ 960 $ (178 ) $ 1,742 $ — $ — $ — $ 1,742 Costs and expenses: Cost of revenue — (424 ) (609 ) 122 (911 ) — — — (911 ) Selling, general and administrative expenses (1 ) (375 ) (238 ) 56 (558 ) — — — (558 ) Amortization of intangible assets — (51 ) (50 ) — (101 ) — — — (101 ) Total costs and expenses (1 ) (850 ) (897 ) 178 (1,570 ) — — — (1,570 ) Operating (loss) income (1 ) 110 63 — 172 — — — 172 Loss on extinguishment of debt (32 ) — — — (32 ) — — — (32 ) Interest (expense) income, net (44 ) 2 (34 ) — (76 ) — — — (76 ) Equity gains (losses) from equity method investments 132 51 — (183 ) — 41 41 (82 ) — Other income (expense), net 6 3 (9 ) — — — — — — Income before income taxes 61 166 20 (183 ) 64 41 41 (82 ) 64 Income tax (expense) benefit (20 ) (22 ) (16 ) 38 (20 ) — — — (20 ) Net income 41 144 4 (145 ) 44 41 41 (82 ) 44 Less: income attributable to noncontrolling interest — — (3 ) — (3 ) — — — (3 ) Net income attributable to Warner Music Group Corp. $ 41 $ 144 $ 1 $ (145 ) $ 41 $ 41 $ 41 $ (82 ) $ 41
Schedule of Consolidating Statement of Comprehensive Income	Consolidating Statement of Comprehensive Income (Unaudited) For The Three Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net (loss) income $ (3 ) $ 40 $ 23 $ (61 ) $ (1 ) $ (3 ) $ (3 ) $ 6 $ (1 ) Other comprehensive income (loss), net of tax: Foreign currency adjustment 9 — (9 ) 9 9 9 9 (18 ) 9 Deferred gains on derivative financial instruments 1 — 1 (1 ) 1 1 1 (2 ) 1 Other comprehensive income (loss), net of tax: 10 — (8 ) 8 10 10 10 (20 ) 10 Total comprehensive income 7 40 15 (53 ) 9 7 7 (14 ) 9 Less: income attributable to noncontrolling interest — (1 ) (1 ) — (2 ) — — — (2 ) Comprehensive income attributable to Warner Music Group Corp. $ 7 $ 39 $ 14 $ (53 ) $ 7 $ 7 $ 7 $ (14 ) $ 7 Consolidating Statement of Comprehensive Income (Unaudited) For The Three Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income $ 19 $ 49 $ 1 $ (49 ) $ 20 $ 19 $ 19 $ (38 ) $ 20 Other comprehensive income, net of tax: Foreign currency adjustment 24 — (50 ) 50 24 24 24 (48 ) 24 Deferred gains on derivative financial instruments 1 1 — (1 ) 1 1 1 (2 ) 1 Other comprehensive income, net of tax: 25 1 (50 ) 49 25 25 25 (50 ) 25 Total comprehensive income 44 50 (49 ) — 45 44 44 (88 ) 45 Less: income attributable to noncontrolling interest — — (1 ) — (1 ) — — — (1 ) Comprehensive income (loss) attributable to Warner Music Group Corp. $ 44 $ 50 $ (50 ) $ — $ 44 $ 44 $ 44 $ (88 ) $ 44 Consolidating Statement of Comprehensive Income (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income (loss) $ 1 $ 74 $ 64 $ (135 ) $ 4 $ 1 $ 1 $ (2 ) $ 4 Other comprehensive income (loss), net of tax: Foreign currency adjustment 18 — (18 ) 18 18 18 18 (36 ) 18 Deferred losses on derivative financial instruments 2 — — — 2 2 2 (4 ) 2 Other comprehensive income (loss), net of tax: 20 — (18 ) 18 20 20 20 (40 ) 20 Total comprehensive income (loss) 21 74 46 (117 ) 24 21 21 (42 ) 24 Less: income attributable to noncontrolling interest — (1 ) (2 ) — (3 ) — — — (3 ) Comprehensive income attributable to Warner Music Group Corp. $ 21 $ 73 $ 44 $ (117 ) $ 21 $ 21 $ 21 $ (42 ) $ 21 Consolidating Statement of Comprehensive Income (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Net income $ 41 $ 144 $ 4 $ (145 ) $ 44 $ 41 $ 41 $ (82 ) $ 44 Other comprehensive (loss) income, net of tax: Foreign currency adjustment (13 ) — (13 ) 13 (13 ) (13 ) (13 ) 26 (13 ) Deferred losses on derivative financial instruments (1 ) (1 ) — 1 (1 ) (1 ) (1 ) 2 (1 ) Other comprehensive (loss) income, net of tax: (14 ) (1 ) (13 ) 14 (14 ) (14 ) (14 ) 28 (14 ) Total comprehensive income (loss) 27 143 (9 ) (131 ) 30 27 27 (54 ) 30 Less: income attributable to noncontrolling interest — — (3 ) — (3 ) — — — (3 ) Comprehensive income (loss) attributable to Warner Music Group Corp. $ 27 $ 143 $ (12 ) $ (131 ) $ 27 $ 27 $ 27 $ (54 ) $ 27
Schedule of Consolidating Statement of Cash Flows	Consolidating Statement of Cash Flows (Unaudited) For The Six Months Ended March 31, 2018 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Cash flows from operating activities Net income (loss) $ 1 $ 74 $ 64 $ (135 ) $ 4 $ 1 $ 1 $ (2 ) $ 4 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization — 67 67 — 134 — — — 134 Unrealized losses and remeasurement of foreign denominated loans 17 3 (9 ) — 11 — — — 11 Deferred income taxes — — 38 — 38 — — — 38 Loss on extinguishment of debt 24 — — — 24 — — — 24 Net (gain) loss on divestitures and investments — (7 ) — — (7 ) — — — (7 ) Non-cash interest expense 3 — — — 3 — — — 3 Equity-based compensation expense — 27 — — 27 — — — 27 Equity (gains) losses, including distributions (156 ) (76 ) — 232 — (1 ) (1 ) 2 — Changes in operating assets and liabilities: Accounts receivable — (16 ) 1 — (15 ) — — — (15 ) Inventories — (1 ) 2 — 1 — — — 1 Royalty advances — (20 ) 8 — (12 ) — — — (12 ) Accounts payable and accrued liabilities — 101 (104 ) (97 ) (100 ) — — — (100 ) Royalty payables — 48 20 — 68 — — — 68 Accrued interest (14 ) — — — (14 ) — — — (14 ) Deferred revenue — 9 (25 ) — (16 ) — — — (16 ) Other balance sheet changes (4 ) 43 (49 ) — (10 ) — — — (10 ) Net cash provided (used in) by operating activities (129 ) 252 13 — 136 — — — 136 Cash flows from investing activities Acquisition of music publishing rights, net — (4 ) (1 ) — (5 ) — — — (5 ) Capital expenditures — (23 ) (6 ) — (29 ) — — — (29 ) Investments and acquisitions of businesses, net — (6 ) — — (6 ) — — — (6 ) Proceeds from the sale of investments — 12 — — 12 — — — 12 Advances from issuer 151 — — (151 ) — — — — — Net cash (used in) provided by investing activities 151 (21 ) (7 ) (151 ) (28 ) — — — (28 ) Cash flows from financing activities Proceeds from issuance of Acquisition Corp. 5.50% Senior Notes 325 — — — 325 — — — 325 Proceeds from supplement of Acquisition Corp. Senior Term Loan Facility 320 — — — 320 — — — 320 Repayment of and redemption deposit for Acquisition Corp. 6.75% Senior Notes (635 ) — — — (635 ) — — — (635 ) Call premiums paid on and redemption deposit for early redemption of debt (23 ) — — — (23 ) — — — (23 ) Deferred financing costs paid (9 ) — — — (9 ) — — — (9 ) Distribution to noncontrolling interest holder — — (2 ) — (2 ) — — — (2 ) Dividends paid — (98 ) (27 ) — (125 ) — — — (125 ) Change in due to (from) issuer — (151 ) — 151 — — — — — Net cash (used in) provided by financing activities (22 ) (249 ) (29 ) 151 (149 ) — — — (149 ) Effect of exchange rate changes on cash and equivalents — — 6 — 6 — — — 6 Net decrease in cash and equivalents — (18 ) (17 ) — (35 ) — — — (35 ) Cash and equivalents at beginning of period — 347 300 — 647 — — — 647 Cash and equivalents at end of period $ — $ 329 $ 283 $ — $ 612 $ — $ — $ — $ 612 Consolidating Statement of Cash Flows (Unaudited) For The Six Months Ended March 31, 2017 WMG WMG Warner Warner Acquisition Non- Acquisition WMG Music Music Corp. Guarantor Guarantor Corp. Holdings Group Group Corp. (issuer) Subsidiaries Subsidiaries Eliminations Consolidated Corp. Corp. Eliminations Consolidated (in millions) Cash flows from operating activities Net income $ 41 $ 144 $ 4 $ (145 ) $ 44 $ 41 $ 41 $ (82 ) $ 44 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization — 70 56 — 126 — — — 126 Unrealized (gains)/losses and remeasurement of foreign denominated loans (11 ) (3 ) 13 — (1 ) — — — (1 ) Deferred income taxes 2 2 (12 ) (4 ) (12 ) — — — (12 ) Loss on extinguishment of debt 32 — — — 32 — — — 32 Net loss on divestiture and investments — 5 1 — 6 — — — 6 Non-cash interest expense 5 — — — 5 — — — 5 Equity-based compensation expense — 17 — — 17 — — — 17 Equity (gains) losses, including distributions (132 ) (51 ) — 183 — (41 ) (41 ) 82 — Changes in operating assets and liabilities: Accounts receivable — (2 ) (39 ) — (41 ) — — — (41 ) Inventories — 2 1 — 3 — — — 3 Royalty advances — (4 ) 5 — 1 — — — 1 Accounts payable and accrued liabilities — (5 ) (4 ) (34 ) (43 ) — — — (43 ) Royalty payables — 54 21 — 75 — — — 75 Accrued interest 7 — — — 7 — — — 7 Deferred revenue — (34 ) 30 — (4 ) — — — (4 ) Other balance sheet changes 7 10 (6 ) — 11 — — — 11 Net cash (used in) provided by operating activities (49 ) 205 70 — 226 — — — 226 Cash flows from investing activities Acquisition of music publishing rights, net — (3 ) (3 ) — (6 ) — — — (6 ) Capital expenditures — (13 ) (5 ) — (18 ) — — — (18 ) Investments and acquisitions of businesses, net — (5 ) (1 ) — (6 ) — — — (6 ) Divestitures, net — 7 11 — 18 — — — 18 Advances to issuer 87 — — (87 ) — — — — — Net cash provided (used in) by investing activities 87 (14 ) 2 (87 ) (12 ) — — — (12 ) Cash flows from financing activities Proceeds from issuance of Acquisition Corp. 4.125% Senior Secured Notes 380 — — — 380 — — — 380 Proceeds from issuance of Acquisition Corp. 4.875% Senior Secured Notes 250 — — — 250 — — — 250 Proceeds from issuance of Acquisition Corp. Senior Term Loan Facility 22 — — — 22 — — — 22 Repayment of Acquisition Corp. 6.00% Senior Secured Notes (450 ) — — — (450 ) — — — (450 ) Repayment of Acquisition Corp. 6.25% Senior Secured Notes (173 ) — — — (173 ) — — — (173 ) Repayment of Acquisition Corp. 5.625% Senior Secured Notes (28 ) — — — (28 ) — — — (28 ) Call premiums paid on early redemption of debt (27 ) — — — (27 ) — — — (27 ) Deferred financing costs paid (12 ) — — — (12 ) — — — (12 ) Distribution to noncontrolling interest holder — — (1 ) — (1 ) — — — (1 ) Dividends paid — (54 ) — — (54 ) — — — (54 ) Change in due to (from) issuer — (87 ) — 87 — — — — — Net cash (used in) provided by financing activities (38 ) (141 ) (1 ) 87 (93 ) — — — (93 ) Effect of exchange rate changes on cash and equivalents — — (4 ) — (4 ) — — — (4 ) Net increase in cash and equivalents — 50 67 — 117 — — — 117 Cash and equivalents at beginning of period — 180 179 — 359 — — — 359 Cash and equivalents at end of period $ — $ 230 $ 246 $ — $ 476 $ — $ — $ — $ 476

Description of Business - Addit

Description of Business - Additional Information (Detail)	6 Months Ended
	Mar. 31, 2018CountryMusical_compositionsongwriters
Accounting Policies [Abstract]
Number of countries in which Recorded Music activity conducted | Country	50
Minimum number of musical compositions on which Company owns or controls rights | Musical_composition	1,000,000
Number of songwriters and composers | songwriters	70,000

Comprehensive Income (Loss) - A

Comprehensive Income (Loss) - Additional Information (Detail) $ in Millions	6 Months Ended
	Mar. 31, 2018USD ($)
Maximum
Accumulated Other Comprehensive Income Loss [Line Items]
Changes in accumulated other comprehensive loss, net of related taxes	$ 1

Comprehensive Income (Loss) - S

Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Loss (Detail) $ in Millions	6 Months Ended
	Mar. 31, 2018USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 308
Ending balance	205
Foreign Currency Translation (Loss) Gain
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(171)	[1]
Other comprehensive income	18	[1]
Ending balance	(153)	[1]
Minimum Pension Liability Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(10)
Ending balance	(10)
Deferred Income On Derivative Financial Instruments
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income	2
Ending balance	2
Accumulated Other Comprehensive Loss, net
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(181)
Other comprehensive income	20
Ending balance	$ (161)
[1]	Includes historical foreign currency translation related to certain intra-entity transactions that are no longer considered of a long-term investment nature.

Goodwill and Intangible Asset34

Goodwill and Intangible Assets - Changes in Goodwill for Each Reportable Segment (Detail) $ in Millions	6 Months Ended
	Mar. 31, 2018USD ($)
Goodwill [Line Items]
Beginning balance	$ 1,685
Other adjustments	11	[1]
Ending balance	1,696
Recorded Music
Goodwill [Line Items]
Beginning balance	1,221
Other adjustments	11	[1]
Ending balance	1,232
Music Publishing
Goodwill [Line Items]
Beginning balance	464
Ending balance	$ 464
[1]	Other adjustments during the six months ended March 31, 2018 represent foreign currency movements.

Goodwill and Intangible Asset35

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2018	Sep. 30, 2017
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Total gross intangible asset subject to amortization	$ 3,439	$ 3,360
Accumulated amortization	(1,402)	(1,270)
Total net intangible assets subject to amortization	2,037	2,090
Intangible assets not subject to amortization	118	117
Total net intangible assets	2,155	2,207
Trademarks and tradenames
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	$ 118	117
Recorded music catalog
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	10 years
Total gross intangible asset subject to amortization	$ 920	898
Music publishing copyrights
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	27 years
Total gross intangible asset subject to amortization	$ 1,564	1,534
Artist and songwriter contracts
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	13 years
Total gross intangible asset subject to amortization	$ 924	904
Trademarks
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	6 years
Total gross intangible asset subject to amortization	$ 14	14
Other Intangible Assets
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, Useful Life	7 years
Total gross intangible asset subject to amortization	$ 17	$ 10

Debt - Long-term Debt (Detail)

Debt - Long-term Debt (Detail) - USD ($) $ in Millions		Mar. 31, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Total debt	[1]	$ 2,947	$ 2,811
Current portion of long-term debt		111
Long-term debt		2,836	2,811
Acquisition Corp. | Senior Term Loan Facility due 2023
Debt Instrument [Line Items]
Total debt	[2]	1,307	990
Acquisition Corp. | 5.00% Senior Secured Notes due 2023
Debt Instrument [Line Items]
Total debt	[3]	297	297
Acquisition Corp. | 5.625% Senior Secured Notes due 2022
Debt Instrument [Line Items]
Total debt	[4]	246	246
Acquisition Corp. | 4.125% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Total debt	[5]	419	402
Acquisition Corp. | 4.875% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Total debt	[6]	247	246
Acquisition Corp. | 6.75% Senior Notes due 2022
Debt Instrument [Line Items]
Total debt	[7]	111	$ 630
Acquisition Corp. | 5.50% Senior Notes due 2026
Debt Instrument [Line Items]
Total debt	[8]	$ 320
[1]	Principal amount of debt of $2.985 billion and $2.846 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $33 million and $29 million at March 31, 2018 and September 30, 2017, respectively.
[2]	Principal amount of $1.326 billion and $1.006 billion less unamortized discount of $5 million and $6 million and unamortized deferred financing costs of $14 million and $10 million at March 31, 2018 and September 30, 2017, respectively.
[3]	Principal amount of $300 million less unamortized deferred financing costs of $3 million at both March 31, 2018 and September 30, 2017.
[4]	Principal amount of $248 million less unamortized deferred financing costs of $2 million at both March 31, 2018 and September 30, 2017.
[5]	Face amount of €345 million. Above amounts represent the dollar equivalent of such notes at March 31, 2018 and September 30, 2017. Principal amount of $424 million and $407 million at March 31, 2018 and September 30, 2017, respectively, less unamortized deferred financing costs of $5 million at both March 31, 2018 and September 30, 2017.
[6]	Principal amount of $250 million at both March 31, 2018 and September 30, 2017 less unamortized deferred financing costs of $3 million and $4 million at March 31, 2018 and September 30, 2017, respectively.
[7]	Principal amount of $112 million and $635 million less unamortized deferred financing costs of $1 million and $5 million at March 31, 2018 and September 30, 2017, respectively. Reflects amount not redeemed as of March 31, 2018 as described below under “Tender Offer and Notes Redemption.” The remaining 6.75% Senior Notes were redeemed on April 15, 2018.
[8]	Principal amount of $325 million less unamortized deferred financing costs of $5 million at March 31, 2018.

Debt - Long-term Debt (Parenthe

Debt - Long-term Debt (Parenthetical) (Detail) € in Millions	6 Months Ended	12 Months Ended
	Mar. 31, 2018USD ($)	Sep. 30, 2017USD ($)	Apr. 15, 2018	Mar. 31, 2018EUR (€)	Mar. 14, 2018USD ($)	Sep. 30, 2017EUR (€)	Mar. 31, 2017
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 2,985,000,000	$ 2,846,000,000
Unamortized discount	5,000,000	6,000,000
Unamortized deferred financing costs	33,000,000	29,000,000
Acquisition Corp. | Revolving Credit Facility
Debt Instrument [Line Items]
Commitments under revolving credit facility	180,000,000	150,000,000
Letters of credit outstanding	12,000,000	12,000,000
Revolving credit facility outstanding	$ 0	$ 0
Senior Term Loan Facility due 2023 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,023	2,023
Face or principal amount of debt instrument	$ 1,326,000,000	$ 1,006,000,000
Unamortized discount	5,000,000	6,000,000
Unamortized deferred financing costs	$ 14,000,000	$ 10,000,000
5.00% Senior Secured Notes due 2023 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,023	2,023
Interest rate	5.00%	5.00%		5.00%		5.00%
Face or principal amount of debt instrument	$ 300,000,000	$ 300,000,000
Unamortized deferred financing costs	$ 3,000,000	$ 3,000,000
4.125% Senior Secured Notes due 2024 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,024	2,024
Interest rate	4.125%	4.125%		4.125%		4.125%
Face or principal amount of debt instrument	$ 424,000,000	$ 407,000,000		€ 345		€ 345
Unamortized deferred financing costs	$ 5,000,000	$ 5,000,000
4.875% Senior Secured Notes due 2024 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,024	2,024
Interest rate	4.875%	4.875%		4.875%		4.875%
Face or principal amount of debt instrument	$ 250,000,000	$ 250,000,000
Unamortized deferred financing costs	$ 3,000,000	$ 4,000,000
6.75% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate	6.75%			6.75%	6.75%		6.75%
Face or principal amount of debt instrument					$ 523,000,000
6.75% Senior Notes due 2022 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,022	2,022
Interest rate	6.75%	6.75%	6.75%	6.75%		6.75%
Face or principal amount of debt instrument	$ 112,000,000	$ 635,000,000			$ 112,000,000
Unamortized deferred financing costs	$ 1,000,000	$ 5,000,000
5.50% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate	5.50%			5.50%
5.50% Senior Notes due 2022 | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,026	2,026
Interest rate	5.50%	5.50%		5.50%		5.50%
Face or principal amount of debt instrument	$ 325,000,000
Unamortized deferred financing costs	$ 5,000,000
5.625% Senior Secured Notes
Debt Instrument [Line Items]
Interest rate	5.625%			5.625%			5.625%
5.625% Senior Secured Notes | Acquisition Corp.
Debt Instrument [Line Items]
Due date of senior secured notes	2,022	2,022
Interest rate	5.625%	5.625%		5.625%		5.625%
Face or principal amount of debt instrument	$ 248,000,000	$ 248,000,000
Unamortized deferred financing costs	$ 2,000,000	$ 2,000,000

Debt - December 2017 Senior Ter

Debt - December 2017 Senior Term Loan Credit Agreement Amendment - Additional Information (Detail) - USD ($) $ in Millions	May 22, 2017	Mar. 31, 2018	Mar. 31, 2018	Mar. 31, 2017
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ (23)	$ (24)	$ (32)
December 2017 Senior Term Loan Credit Agreement Amendment
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ (1)

Debt - New Revolving Credit Agr

Debt - New Revolving Credit Agreement - Additional Information (Detail) - New Revolving Credit Agreement - Revolving Credit Facility $ in Millions	Jan. 31, 2018USD ($)
Debt Instrument [Line Items]
Debt instrument, agreement date	Jan. 31, 2018
Credit agreement covenant terms	The Revolving Credit Agreement differs from the Old Revolving Credit Agreement in that it, among other things, reduces the interest rate margin applicable to the loans, extends the maturity date thereunder, provides for the option to increase the commitments under the Company’s then existing revolving credit agreement, provides for greater flexibility to amend and extend the Company’s then existing revolving credit agreement and create additional tranches thereunder, provides for greater flexibility over future amendments, increases the springing financial maintenance covenant to 4.75:1.00 and provides that the covenant shall not be tested unless at the end of a fiscal quarter the outstanding amount of loans and drawings under letters of credit which have not been reimbursed exceeds $54 million and aligns the other negative covenants with those of the Senior Term Loan Credit Agreement.
Debt instrument, springing financial maintenance covenant	4.75%
Maximum
Debt Instrument [Line Items]
Debt instrument, reimbursed amount	$ 54

Debt - March 2018 Senior Term L

Debt - March 2018 Senior Term Loan Credit Agreement Amendment - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 14, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 2,985		$ 2,846
March 2018 Senior Term Loan Credit Agreement Amendment
Debt Instrument [Line Items]
Face or principal amount of debt instrument		$ 320
Revolving credit facility outstanding		$ 1,326

Debt - Notes Offering - Additio

Debt - Notes Offering - Additional Information (Detail) - USD ($) $ in Millions	Mar. 14, 2018	Mar. 31, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Face or principal amount of debt instrument		$ 2,985	$ 2,846
5.50% Senior Notes due 2026
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 325
Due date of Senior Secured Notes	2,026
Interest rate	5.50%

Debt - Tender Offer and Notes R

Debt - Tender Offer and Notes Redemption - Additional Information (Detail) - USD ($) $ in Millions	Mar. 14, 2018	Apr. 30, 2018	Mar. 31, 2018	Mar. 31, 2018	Mar. 31, 2017	Apr. 15, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Face or principal amount of debt instrument			$ 2,985	$ 2,985			$ 2,846
Redemption deposit			119	119
Loss on extinguishment of debt			$ (23)	$ (24)	$ (32)
6.75% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate	6.75%		6.75%	6.75%	6.75%
Face or principal amount of debt instrument	$ 523
Loss on extinguishment of debt	(23)	$ (5)
6.75% Senior Notes due 2022 | Acquisition Corp.
Debt Instrument [Line Items]
Interest rate			6.75%	6.75%		6.75%	6.75%
Face or principal amount of debt instrument	112		$ 112	$ 112			$ 635
Redemption deposit	$ 119

Debt - Interest Rates - Additio

Debt - Interest Rates - Additional Information (Detail)	6 Months Ended
	Mar. 31, 2018
Senior Term Loan Facility due 2020
Debt Instrument [Line Items]
Description of variable rate basis	The loans under the Senior Term Loan Facility bear interest at Acquisition Corp.’s election at a rate equal to (i) the rate for deposits in U.S. dollars in the London interbank market (adjusted for maximum reserves) for the applicable interest period (“Term Loan LIBOR”) subject to a zero floor, plus 2.25% per annum, or (ii) the base rate, which is the highest of (x) the corporate base rate established by the administrative agent as its prime rate in effect at its principal office in New York City from time to time, (y) 0.50% in excess of the overnight federal funds rate and (z) one-month Term Loan LIBOR, plus 1.00% per annum, plus, in each case, 1.25% per annum.
Interest rate applicable to overdue principal	2.00%
Term loan Base rate plus Election Rate	1.00%
London Interbank Offered Rate (LIBOR) | Senior Term Loan Facility due 2020
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	2.25%
Base Rate | Senior Term Loan Facility due 2020
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	1.25%
Additional Interest rate on other overdue amounts	2.00%
Federal Funds Effective Swap Rate | Senior Term Loan Facility due 2020
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	0.50%
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	0.75%
Description of variable rate basis	The loans under the Revolving Credit Facility bear interest at Acquisition Corp.’s election at a rate equal to (i) the rate for deposits in the borrowing currency in the London interbank market (adjusted for maximum reserves) for the applicable interest period (“Revolving LIBOR”) subject to a zero floor, plus 1.75% per annum, or (ii) the base rate, which is the highest of (x) the corporate base rate established by the administrative agent from time to time, (y) 0.50% in excess of the overnight federal funds rate and (z) the one-month Revolving LIBOR plus 1.0% per annum, plus, in each case, 0.75% per annum. If there is a payment default at any time, then the interest rate applicable to overdue principal will be the rate otherwise applicable to such loan plus 2.0% per annum.
Interest rate applicable to overdue principal	2.00%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	1.75%
Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	1.00%
Additional Interest rate on other overdue amounts	2.00%
Revolving Credit Facility | Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	0.50%

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 14, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 2,985		$ 2,985			$ 2,846
Interest expense, net	$ 36	$ 36	$ 72	$ 76
Weighted-average interest rate of total debt	4.70%	4.90%	4.70%	4.90%		4.90%
Senior Notes
Debt Instrument [Line Items]
Scheduled maturities of long-term debt in 2022	$ 360		$ 360
Face or principal amount of debt instrument	$ 112		$ 112
Interest rate	6.75%		6.75%
Scheduled to mature	$ 1,299		$ 1,299
Revolving Credit Facility
Debt Instrument [Line Items]
Extended maturity date of credit facility			Jan. 31, 2023
Term Loan Facility
Debt Instrument [Line Items]
Credit facility maturity date			Nov. 1, 2023
6.75% Senior Notes
Debt Instrument [Line Items]
Face or principal amount of debt instrument					$ 523
Interest rate	6.75%	6.75%	6.75%	6.75%	6.75%
Weighted-average interest rate of total debt	4.60%		4.60%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Jul. 29, 2015	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
Commitments And Contingencies [Line Items]
Revenues		$ 963		$ 825	$ 2,008	$ 1,742
Sirius XM | Settled Litigation
Commitments And Contingencies [Line Items]
Receipts from plaintiff	$ 210
Cash distribution								$ 33
Revenues			$ 1				$ 4	$ 28

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Contingency [Line Items]
U.S. corporate statutory tax rate		35.00%	35.00%		35.00%
Enacted tax rate	21.00%
Tax Act, provisional income tax expense		$ 26,000,000		$ 26,000,000
Tax Act, provisional deferred tax liability				$ 4,000,000
One-time transition tax on accumulated foreign earnings, tax rate for cash and cash equivalents				15.50%
One-time transition tax on accumulated foreign earnings, tax rate for illiquid assets				8.00%
Income tax liability related to Transition Tax	$ 0			$ 0
Income tax expense	19,000,000		$ 3,000,000	71,000,000	$ 20,000,000
Income withholding taxes and foreign losses uncertain tax positions	0		$ 0	0	$ 0
Maximum
Income Tax Contingency [Line Items]
Reasonably possible decrease in gross unrecognized tax benefits from ongoing audits and settlement	$ 3,000,000			$ 3,000,000
Scenario, Plan
Income Tax Contingency [Line Items]
U.S. corporate statutory tax rate						21.00%	21.00%	24.50%

Derivative Financial Instrume47

Derivative Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017
Derivatives Fair Value [Line Items]
Companys hedged interest rate transactions			5 years
Outstanding hedge contracts					$ 0
Deferred gains (losses) in comprehensive loss related to foreign exchange hedging					0
Deferred gains (losses) on derivative financial instruments	$ 1,000,000	$ 1,000,000	$ 2,000,000	$ (1,000,000)
Pre-tax gains and losses of the company derivative interest rate			1,000,000		0
Maximum
Derivatives Fair Value [Line Items]
Unrealized deferred income in comprehensive income related to foreign exchange hedging			2,000,000
Interest Rate Swap
Derivatives Fair Value [Line Items]
Outstanding hedge contracts	320,000,000		320,000,000		0
Deferred gains (losses) on derivative financial instruments			1,000,000		$ 0
Sale
Derivatives Fair Value [Line Items]
Outstanding hedge contracts	197,000,000		197,000,000
Purchase
Derivatives Fair Value [Line Items]
Outstanding hedge contracts	$ 114,000,000		$ 114,000,000

Derivative Financial Instrume48

Derivative Financial Instruments - Summary of Amounts Recorded in Consolidated Balance Sheet (Detail) $ in Millions	Mar. 31, 2018USD ($)	[1]
Other Current Assets
Derivatives Fair Value [Line Items]
Other assets	$ 2	[2]
Other Current Liabilities
Derivatives Fair Value [Line Items]
Other liabilities	3	[2]
Other Noncurrent Liabilities
Derivatives Fair Value [Line Items]
Other liabilities	$ 1
[1]	$5 million and $6 million of foreign exchange derivative contracts in asset and liability positions, respectively, and $1 million of interest rate swap in a liability position including non-designated cash flow hedges.
[2]	The fair value of foreign currency forward exchange contracts is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay at their maturity dates for contracts involving the same currencies and maturity dates.

Derivative Financial Instrume49

Derivative Financial Instruments - Summary of Amounts Recorded in Consolidated Balance Sheet (Parenthetical) (Detail) $ in Millions	Mar. 31, 2018USD ($)
Derivatives Fair Value [Line Items]
Foreign exchange derivative contracts in asset	$ 5
Foreign exchange derivative contracts in liability	6
Interest Rate Swap
Derivatives Fair Value [Line Items]
Foreign exchange derivative contracts in liability	$ 1

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Mar. 31, 2018Operations
Segment Reporting [Abstract]
Number of fundamental operations	2

Segment Information - Schedule

Segment Information - Schedule of Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 963	$ 825	$ 2,008	$ 1,742
Operating income	83	78	173	172
Amortization of intangible assets	55	50	108	101
Depreciation of property, plant and equipment	14	13	26	25
OIBDA	152	141	307	298
Operating Segments | Recorded Music
Segment Reporting Information [Line Items]
Revenues	791	686	1,695	1,483
Operating income	80	69	209	192
Amortization of intangible assets	38	34	74	69
Depreciation of property, plant and equipment	9	9	17	16
OIBDA	127	112	300	277
Operating Segments | Music Publishing
Segment Reporting Information [Line Items]
Revenues	174	145	317	269
Operating income	41	41	40	39
Amortization of intangible assets	17	16	34	32
Depreciation of property, plant and equipment	2	1	3	3
OIBDA	60	58	77	74
Corporate Expenses and Eliminations
Segment Reporting Information [Line Items]
Revenues	(2)	(6)	(4)	(10)
Operating income	(38)	(32)	(76)	(59)
Depreciation of property, plant and equipment	3	3	6	6
OIBDA	$ (35)	$ (29)	$ (70)	$ (53)

Additional Financial Informat52

Additional Financial Information - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Supplemental Cash Flow Information [Abstract]
Accrued interest paid	$ 34	$ 17	$ 86	$ 64
Income taxes paid net of refunds	10	13	18	22
Tax refund	$ 1	$ 3	$ 1	$ 3

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions		Mar. 31, 2018	Sep. 30, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contractual Obligations			$ (5)
Total		$ (8)
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total		(2)
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contractual Obligations			(5)
Total		(6)
Other Current Assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign Currency Forward Exchange Contracts	[1],[2]	2
Other Current Assets | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign Currency Forward Exchange Contracts	[2]	2
Other Current Liabilities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign Currency Forward Exchange Contracts	[1],[2]	(3)
Other Current Liabilities | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign Currency Forward Exchange Contracts	[2]	(3)
Other Noncurrent Liabilities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign Currency Forward Exchange Contracts	[1]	(1)
Contractual Obligations	[3]	(6)	(5)
Interest rate swap	[3]	(1)
Other Noncurrent Liabilities | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swap	[3]	(1)
Other Noncurrent Liabilities | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contractual Obligations	[3]	$ (6)	$ (5)
[1]	$5 million and $6 million of foreign exchange derivative contracts in asset and liability positions, respectively, and $1 million of interest rate swap in a liability position including non-designated cash flow hedges.
[2]	The fair value of foreign currency forward exchange contracts is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay at their maturity dates for contracts involving the same currencies and maturity dates.
[3]	The fair value of the interest rate swap is based on dealer quotes of market forward rates and reflects the amount that the Company would receive or pay as of March 31, 2018 for contracts involving the same attributes and maturity dates.

Fair Value Measurements - Recon

Fair Value Measurements - Reconciliation of Net Liabilities Classified as Level 3 (Detail) - Level 3 $ in Millions	6 Months Ended
	Mar. 31, 2018USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at September 30, 2017	$ (5)
Additions	(1)
Balance at March 31, 2018	$ (6)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Sep. 30, 2017
Level 2 measurement
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	$ 3,027	$ 2,936

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - Subsequent Event $ in Millions	May 07, 2018USD ($)
Subsequent Event [Line Items]
Special cash dividends	$ 300
Special cash dividends payable, date to be paid	May 11, 2018
Special cash dividends payable, date of record	May 7, 2018
Spotify Technology S.A.
Subsequent Event [Line Items]
Sale of common shares, consideration received	$ 400
Pre-tax gain, net	$ 300

Guarantor and Non-Guarantor S57

Guarantor and Non-Guarantor Subsidiaries Financial Information - Additional Information (Detail)	Mar. 14, 2018	Mar. 31, 2018	Sep. 30, 2017	Apr. 15, 2018	Mar. 31, 2017
5.625% Senior Secured Notes due 2022
Condensed Financial Statements Captions [Line Items]
Interest rate		5.625%			5.625%
5.625% Senior Secured Notes due 2022 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		5.625%	5.625%
Due date of Senior Secured Notes		2,022	2,022
5.00% Senior Secured Notes due 2023 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		5.00%
Due date of Senior Secured Notes		2,023
4.125% Senior Secured Notes due 2024 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		4.125%	4.125%
Due date of Senior Secured Notes		2,024	2,024
4.875% Senior Secured Notes due 2024 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		4.875%	4.875%
Due date of Senior Secured Notes		2,024	2,024
6.75% Senior Notes due 2022
Condensed Financial Statements Captions [Line Items]
Interest rate	6.75%	6.75%			6.75%
6.75% Senior Notes due 2022 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		6.75%	6.75%	6.75%
Due date of Senior Secured Notes		2,022	2,022
5.50% Senior Notes due 2026
Condensed Financial Statements Captions [Line Items]
Interest rate	5.50%
Due date of Senior Secured Notes	2,026
5.50% Senior Notes due 2026 | Acquisition Corp.
Condensed Financial Statements Captions [Line Items]
Interest rate		5.50%
Due date of Senior Secured Notes		2,026

Guarantor and Non-Guarantor S58

Guarantor and Non-Guarantor Subsidiaries Financial Information - Consolidating Balance Sheet Unaudited (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Current assets:
Cash and equivalents	$ 612	$ 647	$ 476	$ 359
Redemption deposit	119
Accounts receivable, net	427	404
Inventories	39	39
Royalty advances expected to be recouped within one year	148	141
Prepaid and other current assets	62	44
Total current assets	1,407	1,275
Royalty advances expected to be recouped after one year	181	172
Property, plant and equipment, net	214	213
Goodwill	1,696	1,685
Intangible assets subject to amortization, net	2,037	2,090
Intangible assets not subject to amortization	118	117
Deferred tax assets, net	52	97
Other assets	77	69
Total assets	5,782	5,718
Current liabilities:
Accounts payable	203	208
Accrued royalties	1,358	1,263
Accrued liabilities	340	365
Accrued interest	27	41
Deferred revenue	197	197
Current portion of long-term debt	111
Other current liabilities	37	26
Total current liabilities	2,273	2,100
Long-term debt	2,836	2,811
Deferred tax liabilities, net	194	190
Other noncurrent liabilities	274	309
Total liabilities	5,577	5,410
Total Warner Music Group Corp. equity	189	293
Noncontrolling interest	16	15
Total equity	205	308
Total liabilities and equity	5,782	5,718
Reportable Legal Entities | Guarantor Subsidiaries
Current assets:
Cash and equivalents	329	347	230	180
Accounts receivable, net	230	214
Inventories	14	12
Royalty advances expected to be recouped within one year	98	89
Prepaid and other current assets	12	15
Total current assets	683	677
Due from (to) parent companies	(49)	96
Investments in and advances to consolidated subsidiaries	1,630	1,312
Royalty advances expected to be recouped after one year	120	109
Property, plant and equipment, net	138	139
Goodwill	1,368	1,368
Intangible assets subject to amortization, net	992	1,029
Intangible assets not subject to amortization	71	71
Deferred tax assets, net	44	89
Other assets	50	45
Total assets	5,047	4,935
Current liabilities:
Accounts payable	126	135
Accrued royalties	785	732
Accrued liabilities	155	144
Deferred revenue	146	125
Other current liabilities	5	3
Total current liabilities	1,217	1,139
Other noncurrent liabilities	156	196
Total liabilities	1,373	1,335
Total Warner Music Group Corp. equity	3,669	3,596
Noncontrolling interest	5	4
Total equity	3,674	3,600
Total liabilities and equity	5,047	4,935
Reportable Legal Entities | Non-Guarantor Subsidiaries
Current assets:
Cash and equivalents	283	300	246	179
Accounts receivable, net	197	190
Inventories	25	27
Royalty advances expected to be recouped within one year	50	52
Prepaid and other current assets	50	29
Total current assets	605	598
Due from (to) parent companies	(469)	(514)
Royalty advances expected to be recouped after one year	61	63
Property, plant and equipment, net	76	74
Goodwill	328	317
Intangible assets subject to amortization, net	1,045	1,061
Intangible assets not subject to amortization	47	46
Deferred tax assets, net	8	8
Other assets	19	17
Total assets	1,720	1,670
Current liabilities:
Accounts payable	76	73
Accrued royalties	573	531
Accrued liabilities	185	221
Deferred revenue	51	72
Other current liabilities	32	23
Total current liabilities	917	920
Deferred tax liabilities, net	194	190
Other noncurrent liabilities	117	112
Total liabilities	1,228	1,222
Total Warner Music Group Corp. equity	481	437
Noncontrolling interest	11	11
Total equity	492	448
Total liabilities and equity	1,720	1,670
Reportable Legal Entities | Warner Music Group Corp.
Current assets:
Investments in and advances to consolidated subsidiaries	398	377
Total assets	398	377
Current liabilities:
Total Warner Music Group Corp. equity	398	377
Total equity	398	377
Total liabilities and equity	398	377
Reportable Legal Entities | WMG Acquisition Corp.
Current assets:
Redemption deposit	119
Total current assets	119
Due from (to) parent companies	518	418
Investments in and advances to consolidated subsidiaries	2,520	2,721
Other assets	8	7
Total assets	3,165	3,146
Current liabilities:
Accounts payable	1
Accrued interest	27	41
Current portion of long-term debt	111
Total current liabilities	139	41
Long-term debt	2,836	2,811
Other noncurrent liabilities	1	1
Total liabilities	2,976	2,853
Total Warner Music Group Corp. equity	189	293
Total equity	189	293
Total liabilities and equity	3,165	3,146
Reportable Legal Entities | WMG Acquisition Corp. Consolidated
Current assets:
Cash and equivalents	612	647	$ 476	$ 359
Redemption deposit	119
Accounts receivable, net	427	404
Inventories	39	39
Royalty advances expected to be recouped within one year	148	141
Prepaid and other current assets	62	44
Total current assets	1,407	1,275
Royalty advances expected to be recouped after one year	181	172
Property, plant and equipment, net	214	213
Goodwill	1,696	1,685
Intangible assets subject to amortization, net	2,037	2,090
Intangible assets not subject to amortization	118	117
Deferred tax assets, net	52	97
Other assets	77	69
Total assets	5,782	5,718
Current liabilities:
Accounts payable	203	208
Accrued royalties	1,358	1,263
Accrued liabilities	340	365
Accrued interest	27	41
Deferred revenue	197	197
Current portion of long-term debt	111
Other current liabilities	37	26
Total current liabilities	2,273	2,100
Long-term debt	2,836	2,811
Deferred tax liabilities, net	194	190
Other noncurrent liabilities	274	309
Total liabilities	5,577	5,410
Total Warner Music Group Corp. equity	189	293
Noncontrolling interest	16	15
Total equity	205	308
Total liabilities and equity	5,782	5,718
Reportable Legal Entities | WMG Holdings Corp.
Current assets:
Investments in and advances to consolidated subsidiaries	398	377
Total assets	398	377
Current liabilities:
Total Warner Music Group Corp. equity	398	377
Total equity	398	377
Total liabilities and equity	398	377
Eliminations
Current assets:
Investments in and advances to consolidated subsidiaries	(796)	(754)
Total assets	(796)	(754)
Current liabilities:
Total Warner Music Group Corp. equity	(796)	(754)
Total equity	(796)	(754)
Total liabilities and equity	(796)	(754)
Eliminations | WMG Acquisition Corp.
Current assets:
Investments in and advances to consolidated subsidiaries	(4,150)	(4,033)
Total assets	(4,150)	(4,033)
Current liabilities:
Total Warner Music Group Corp. equity	(4,150)	(4,033)
Total equity	(4,150)	(4,033)
Total liabilities and equity	$ (4,150)	$ (4,033)

Guarantor and Non-Guarantor S59

Guarantor and Non-Guarantor Subsidiaries Financial Information - Consolidating Statement of Operations Unaudited (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Condensed Income Statements Captions [Line Items]
Revenues		$ 963	$ 825	$ 2,008	$ 1,742
Costs and expenses:
Cost of revenue		(488)	(415)	(1,057)	(911)
Selling, general and administrative expenses	[1]	(337)	(282)	(670)	(558)
Amortization of intangible assets		(55)	(50)	(108)	(101)
Total costs and expenses		(880)	(747)	(1,835)	(1,570)
Operating income		83	78	173	172
Loss on extinguishment of debt		(23)		(24)	(32)
Interest expense, net		(36)	(36)	(72)	(76)
Other income (expense), net		(6)	(19)	(2)
Income before income taxes		18	23	75	64
Income tax expense		(19)	(3)	(71)	(20)
Net income (loss)		(1)	20	4	44
Less: Income attributable to noncontrolling interest		(2)	(1)	(3)	(3)
Net income (loss) attributable to Warner Music Group Corp.		(3)	19	1	41
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Revenues		535	470	1,082	960
Costs and expenses:
Cost of revenue		(242)	(204)	(499)	(424)
Selling, general and administrative expenses		(244)	(199)	(479)	(375)
Amortization of intangible assets		(23)	(26)	(47)	(51)
Total costs and expenses		(509)	(429)	(1,025)	(850)
Operating income		26	41	57	110
Interest expense, net			1	1	2
Equity gains (losses) from equity method investments		33	11	76	51
Other income (expense), net		(1)		9	3
Income before income taxes		58	53	143	166
Income tax expense		(18)	(4)	(69)	(22)
Net income (loss)		40	49	74	144
Less: Income attributable to noncontrolling interest		(1)		(1)
Net income (loss) attributable to Warner Music Group Corp.		39	49	73	144
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Revenues		549	439	1,170	960
Costs and expenses:
Cost of revenue		(327)	(268)	(720)	(609)
Selling, general and administrative expenses		(135)	(110)	(273)	(238)
Amortization of intangible assets		(32)	(24)	(61)	(50)
Total costs and expenses		(494)	(402)	(1,054)	(897)
Operating income		55	37	116	63
Interest expense, net		(5)	(16)	(13)	(34)
Other income (expense), net		(9)	(13)	(11)	(9)
Income before income taxes		41	8	92	20
Income tax expense		(18)	(7)	(28)	(16)
Net income (loss)		23	1	64	4
Less: Income attributable to noncontrolling interest		(1)	(1)	(2)	(3)
Net income (loss) attributable to Warner Music Group Corp.		22		62	1
Reportable Legal Entities | Warner Music Group Corp.
Costs and expenses:
Equity gains (losses) from equity method investments		(3)	19	1	41
Income before income taxes		(3)	19	1	41
Net income (loss)		(3)	19	1	41
Net income (loss) attributable to Warner Music Group Corp.		(3)	19	1	41
Reportable Legal Entities | WMG Acquisition Corp.
Costs and expenses:
Selling, general and administrative expenses					(1)
Total costs and expenses					(1)
Operating income					(1)
Loss on extinguishment of debt		(23)		(24)	(32)
Interest expense, net		(31)	(21)	(60)	(44)
Equity gains (losses) from equity method investments		66	49	156	132
Other income (expense), net		4	(6)		6
Income before income taxes		16	22	72	61
Income tax expense		(19)	(3)	(71)	(20)
Net income (loss)		(3)	19	1	41
Net income (loss) attributable to Warner Music Group Corp.		(3)	19	1	41
Reportable Legal Entities | WMG Acquisition Corp. Consolidated
Condensed Income Statements Captions [Line Items]
Revenues		963	825	2,008	1,742
Costs and expenses:
Cost of revenue		(488)	(415)	(1,057)	(911)
Selling, general and administrative expenses		(337)	(282)	(670)	(558)
Amortization of intangible assets		(55)	(50)	(108)	(101)
Total costs and expenses		(880)	(747)	(1,835)	(1,570)
Operating income		83	78	173	172
Loss on extinguishment of debt		(23)		(24)	(32)
Interest expense, net		(36)	(36)	(72)	(76)
Other income (expense), net		(6)	(19)	(2)
Income before income taxes		18	23	75	64
Income tax expense		(19)	(3)	(71)	(20)
Net income (loss)		(1)	20	4	44
Less: Income attributable to noncontrolling interest		(2)	(1)	(3)	(3)
Net income (loss) attributable to Warner Music Group Corp.		(3)	19	1	41
Reportable Legal Entities | WMG Holdings Corp.
Costs and expenses:
Equity gains (losses) from equity method investments		(3)	19	1	41
Income before income taxes		(3)	19	1	41
Net income (loss)		(3)	19	1	41
Net income (loss) attributable to Warner Music Group Corp.		(3)	19	1	41
Eliminations
Costs and expenses:
Equity gains (losses) from equity method investments		6	(38)	(2)	(82)
Income before income taxes		6	(38)	(2)	(82)
Net income (loss)		6	(38)	(2)	(82)
Net income (loss) attributable to Warner Music Group Corp.		6	(38)	(2)	(82)
Eliminations | WMG Acquisition Corp.
Condensed Income Statements Captions [Line Items]
Revenues		(121)	(84)	(244)	(178)
Costs and expenses:
Cost of revenue		81	57	162	122
Selling, general and administrative expenses		42	27	82	56
Total costs and expenses		123	84	244	178
Operating income		2
Equity gains (losses) from equity method investments		(99)	(60)	(232)	(183)
Income before income taxes		(97)	(60)	(232)	(183)
Income tax expense		36	11	97	38
Net income (loss)		(61)	(49)	(135)	(145)
Net income (loss) attributable to Warner Music Group Corp.		$ (61)	$ (49)	$ (135)	$ (145)
[1]	(a) Includes depreciation expense of: $(14) $(13) $(26) $(25)

Guarantor and Non-Guarantor S60

Guarantor and Non-Guarantor Subsidiaries Financial Information - Consolidating Statement of Comprehensive Income Unaudited (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	$ (1)	$ 20	$ 4	$ 44
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	9	45	24	30
Less: Income attributable to noncontrolling interest	(2)	(1)	(3)	(3)
Comprehensive income attributable to Warner Music Group Corp.	7	44	21	27
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	40	49	74	144
Other comprehensive income (loss), net of tax:
Deferred gains (losses) on derivative financial instruments		1		(1)
Other comprehensive income (loss), net of tax		1		(1)
Total comprehensive income	40	50	74	143
Less: Income attributable to noncontrolling interest	(1)		(1)
Comprehensive income attributable to Warner Music Group Corp.	39	50	73	143
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	23	1	64	4
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	(9)	(50)	(18)	(13)
Deferred gains (losses) on derivative financial instruments	1
Other comprehensive income (loss), net of tax	(8)	(50)	(18)	(13)
Total comprehensive income	15	(49)	46	(9)
Less: Income attributable to noncontrolling interest	(1)	(1)	(2)	(3)
Comprehensive income attributable to Warner Music Group Corp.	14	(50)	44	(12)
Reportable Legal Entities | Warner Music Group Corp.
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	(3)	19	1	41
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	7	44	21	27
Comprehensive income attributable to Warner Music Group Corp.	7	44	21	27
Reportable Legal Entities | WMG Acquisition Corp.
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	(3)	19	1	41
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	7	44	21	27
Comprehensive income attributable to Warner Music Group Corp.	7	44	21	27
Reportable Legal Entities | WMG Acquisition Corp. Consolidated
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	(1)	20	4	44
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	9	45	24	30
Less: Income attributable to noncontrolling interest	(2)	(1)	(3)	(3)
Comprehensive income attributable to Warner Music Group Corp.	7	44	21	27
Reportable Legal Entities | WMG Holdings Corp.
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	(3)	19	1	41
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	24	18	(13)
Deferred gains (losses) on derivative financial instruments	1	1	2	(1)
Other comprehensive income (loss), net of tax	10	25	20	(14)
Total comprehensive income	7	44	21	27
Comprehensive income attributable to Warner Music Group Corp.	7	44	21	27
Eliminations
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	6	(38)	(2)	(82)
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	(18)	(48)	(36)	26
Deferred gains (losses) on derivative financial instruments	(2)	(2)	(4)	2
Other comprehensive income (loss), net of tax	(20)	(50)	(40)	28
Total comprehensive income	(14)	(88)	(42)	(54)
Comprehensive income attributable to Warner Music Group Corp.	(14)	(88)	(42)	(54)
Eliminations | WMG Acquisition Corp.
Condensed Statement Of Income Captions [Line Items]
Net income (loss)	(61)	(49)	(135)	(145)
Other comprehensive income (loss), net of tax:
Foreign currency adjustment	9	50	18	13
Deferred gains (losses) on derivative financial instruments	(1)	(1)		1
Other comprehensive income (loss), net of tax	8	$ 49	18	14
Total comprehensive income	(53)		(117)	(131)
Comprehensive income attributable to Warner Music Group Corp.	$ (53)		$ (117)	$ (131)

Guarantor and Non-Guarantor S61

Guarantor and Non-Guarantor Subsidiaries Financial Information - Consolidating Statement of Cash Flows Unaudited (Detail) - USD ($) $ in Millions	Mar. 14, 2018	Apr. 30, 2018	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net income			$ (1)	$ 20	$ 4	$ 44
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					134	126
Unrealized losses (gains) and remeasurement of foreign denominated loans					11	(1)
Deferred income taxes					38	(12)
Loss on extinguishment of debt			23		24	32
Net (gain) loss on divestitures and investments					7	(6)
Non-cash interest expense					3	5
Equity-based compensation expense					27	17
Changes in operating assets and liabilities:
Accounts receivable					(15)	(41)
Inventories					1	3
Royalty advances					(12)	1
Accounts payable and accrued liabilities					(100)	(43)
Royalty payables					68	75
Accrued interest					(14)	7
Deferred revenue					(16)	(4)
Other balance sheet changes					(10)	11
Net loss on divestiture and investments					(7)	6
Net cash provided by operating activities					136	226
Cash flows from investing activities
Acquisition of music publishing rights, net					(5)	(6)
Capital expenditures					(29)	(18)
Investments and acquisitions of businesses, net					(6)	(6)
Proceeds from the sale of investments					12	18
Net cash (used in) provided by investing activities					(28)	(12)
Divestitures, net						18
Cash flows from financing activities
Call premiums paid on early redemption of debt						(27)
Call premiums paid on and redemption deposit for early redemption of debt					(23)
Deferred financing costs paid					(9)	(12)
Distribution to noncontrolling interest holder					(2)	(1)
Dividends paid					(125)	(54)
Net cash (used in) provided by financing activities					(149)	(93)
Proceeds from issuance of Acquisition Corp. Senior Term Loan Facility					320	22
Effect of exchange rate changes on cash and equivalents					6	(4)
Net (decrease) increase in cash and equivalents					(35)	117
Cash and equivalents at beginning of period		$ 612			647	359
Cash and equivalents at end of period			612	476	612	476
5.50% Senior Notes due 2022
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp					325
Senior Term Loan Facility
Cash flows from financing activities
Proceeds from supplement of Acquisition Corp.					320
6.75% Senior Notes
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on extinguishment of debt	$ 23	5
Cash flows from financing activities
Repayment of and redemption deposit					(635)
4.125% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						380
4.875% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						250
6.00% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes						(450)
6.25% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes						(173)
5.625% Senior Secured Notes
Cash flows from financing activities
Repayment of Senior Secured Notes						(28)
Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities
Net income			40	49	74	144
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					67	70
Unrealized losses (gains) and remeasurement of foreign denominated loans					3	(3)
Deferred income taxes						2
Net (gain) loss on divestitures and investments					7	(5)
Equity-based compensation expense					27	17
Equity (gains) losses, including distributions					(76)	(51)
Changes in operating assets and liabilities:
Accounts receivable					(16)	(2)
Inventories					(1)	2
Royalty advances					(20)	(4)
Accounts payable and accrued liabilities					101	(5)
Royalty payables					48	54
Deferred revenue					9	(34)
Other balance sheet changes					43	10
Net loss on divestiture and investments					(7)	5
Net cash provided by operating activities					252	205
Cash flows from investing activities
Acquisition of music publishing rights, net					(4)	(3)
Capital expenditures					(23)	(13)
Investments and acquisitions of businesses, net					(6)	(5)
Proceeds from the sale of investments					12
Net cash (used in) provided by investing activities					(21)	(14)
Divestitures, net						7
Cash flows from financing activities
Dividends paid					(98)	(54)
Change in due to (from) issuer					(151)	(87)
Net cash (used in) provided by financing activities					(249)	(141)
Net (decrease) increase in cash and equivalents					(18)	50
Cash and equivalents at beginning of period		329			347	180
Cash and equivalents at end of period			329	230	329	230
Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities
Net income			23	1	64	4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					67	56
Unrealized losses (gains) and remeasurement of foreign denominated loans					(9)	13
Deferred income taxes					38	(12)
Net (gain) loss on divestitures and investments						(1)
Changes in operating assets and liabilities:
Accounts receivable					1	(39)
Inventories					2	1
Royalty advances					8	5
Accounts payable and accrued liabilities					(104)	(4)
Royalty payables					20	21
Deferred revenue					(25)	30
Other balance sheet changes					(49)	(6)
Net loss on divestiture and investments						1
Net cash provided by operating activities					13	70
Cash flows from investing activities
Acquisition of music publishing rights, net					(1)	(3)
Capital expenditures					(6)	(5)
Investments and acquisitions of businesses, net						(1)
Net cash (used in) provided by investing activities					(7)	2
Divestitures, net						11
Cash flows from financing activities
Distribution to noncontrolling interest holder					(2)	(1)
Dividends paid					(27)
Net cash (used in) provided by financing activities					(29)	(1)
Effect of exchange rate changes on cash and equivalents					6	(4)
Net (decrease) increase in cash and equivalents					(17)	67
Cash and equivalents at beginning of period		283			300	179
Cash and equivalents at end of period			283	246	283	246
Reportable Legal Entities | Warner Music Group Corp.
Cash flows from operating activities
Net income			(3)	19	1	41
Adjustments to reconcile net income to net cash provided by operating activities:
Equity (gains) losses, including distributions					(1)	(41)
Reportable Legal Entities | WMG Acquisition Corp.
Cash flows from operating activities
Net income			(3)	19	1	41
Adjustments to reconcile net income to net cash provided by operating activities:
Unrealized losses (gains) and remeasurement of foreign denominated loans					17	(11)
Deferred income taxes						2
Loss on extinguishment of debt			23		24	32
Non-cash interest expense					3	5
Equity (gains) losses, including distributions					(156)	(132)
Changes in operating assets and liabilities:
Accrued interest					(14)	7
Other balance sheet changes					(4)	7
Net cash provided by operating activities					(129)	(49)
Cash flows from investing activities
Advances (from) to issuer					151	87
Net cash (used in) provided by investing activities					151	87
Cash flows from financing activities
Call premiums paid on early redemption of debt						(27)
Call premiums paid on and redemption deposit for early redemption of debt					(23)
Deferred financing costs paid					(9)	(12)
Net cash (used in) provided by financing activities					(22)	(38)
Proceeds from issuance of Acquisition Corp. Senior Term Loan Facility						22
Reportable Legal Entities | WMG Acquisition Corp. Consolidated
Cash flows from operating activities
Net income			(1)	20	4	44
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					134	126
Unrealized losses (gains) and remeasurement of foreign denominated loans					11	(1)
Deferred income taxes					38	(12)
Loss on extinguishment of debt			23		24	32
Net (gain) loss on divestitures and investments					7	(6)
Non-cash interest expense					3	5
Equity-based compensation expense					27	17
Changes in operating assets and liabilities:
Accounts receivable					(15)	(41)
Inventories					1	3
Royalty advances					(12)	1
Accounts payable and accrued liabilities					(100)	(43)
Royalty payables					68	75
Accrued interest					(14)	7
Deferred revenue					(16)	(4)
Other balance sheet changes					(10)	11
Net loss on divestiture and investments					(7)	6
Net cash provided by operating activities					136	226
Cash flows from investing activities
Acquisition of music publishing rights, net					(5)	(6)
Capital expenditures					(29)	(18)
Investments and acquisitions of businesses, net					(6)	(6)
Proceeds from the sale of investments					12
Net cash (used in) provided by investing activities					(28)	(12)
Divestitures, net						18
Cash flows from financing activities
Call premiums paid on early redemption of debt						(27)
Call premiums paid on and redemption deposit for early redemption of debt					(23)
Deferred financing costs paid					(9)	(12)
Distribution to noncontrolling interest holder					(2)	(1)
Dividends paid					(125)	(54)
Net cash (used in) provided by financing activities					(149)	(93)
Proceeds from issuance of Acquisition Corp. Senior Term Loan Facility						22
Effect of exchange rate changes on cash and equivalents					6	(4)
Net (decrease) increase in cash and equivalents					(35)	117
Cash and equivalents at beginning of period		$ 612			647	359
Cash and equivalents at end of period			612	476	612	476
Reportable Legal Entities | WMG Holdings Corp.
Cash flows from operating activities
Net income			(3)	19	1	41
Adjustments to reconcile net income to net cash provided by operating activities:
Equity (gains) losses, including distributions					(1)	(41)
Reportable Legal Entities | 5.50% Senior Notes due 2022 | WMG Acquisition Corp.
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp					325
Reportable Legal Entities | 5.50% Senior Notes due 2022 | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp					325
Reportable Legal Entities | Senior Term Loan Facility | WMG Acquisition Corp.
Cash flows from financing activities
Proceeds from supplement of Acquisition Corp.					320
Reportable Legal Entities | Senior Term Loan Facility | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Proceeds from supplement of Acquisition Corp.					320
Reportable Legal Entities | 6.75% Senior Notes | WMG Acquisition Corp.
Cash flows from financing activities
Repayment of and redemption deposit					(635)
Reportable Legal Entities | 6.75% Senior Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Repayment of and redemption deposit					(635)
Reportable Legal Entities | 4.125% Senior Secured Notes | WMG Acquisition Corp.
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						380
Reportable Legal Entities | 4.125% Senior Secured Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						380
Reportable Legal Entities | 4.875% Senior Secured Notes | WMG Acquisition Corp.
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						250
Reportable Legal Entities | 4.875% Senior Secured Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Proceeds from issuance of Acquisition Corp						250
Reportable Legal Entities | 6.00% Senior Secured Notes | WMG Acquisition Corp.
Cash flows from financing activities
Repayment of Senior Secured Notes						(450)
Reportable Legal Entities | 6.00% Senior Secured Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Repayment of Senior Secured Notes						(450)
Reportable Legal Entities | 6.25% Senior Secured Notes | WMG Acquisition Corp.
Cash flows from financing activities
Repayment of Senior Secured Notes						(173)
Reportable Legal Entities | 6.25% Senior Secured Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Repayment of Senior Secured Notes						(173)
Reportable Legal Entities | 5.625% Senior Secured Notes | WMG Acquisition Corp.
Cash flows from financing activities
Repayment of Senior Secured Notes						(28)
Reportable Legal Entities | 5.625% Senior Secured Notes | WMG Acquisition Corp. Consolidated
Cash flows from financing activities
Repayment of Senior Secured Notes						(28)
Eliminations
Cash flows from operating activities
Net income			6	(38)	(2)	(82)
Adjustments to reconcile net income to net cash provided by operating activities:
Equity (gains) losses, including distributions					2	82
Eliminations | WMG Acquisition Corp.
Cash flows from operating activities
Net income			$ (61)	$ (49)	(135)	(145)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes						(4)
Equity (gains) losses, including distributions					232	183
Changes in operating assets and liabilities:
Accounts payable and accrued liabilities					(97)	(34)
Cash flows from investing activities
Advances (from) to issuer					(151)	(87)
Net cash (used in) provided by investing activities					(151)	(87)
Cash flows from financing activities
Change in due to (from) issuer					151	87
Net cash (used in) provided by financing activities					$ 151	$ 87

Guarantor and Non-Guarantor S62

Guarantor and Non-Guarantor Subsidiaries Financial Information - Consolidating Statement of Cash Flows (Parenthetical) Unaudited (Detail)	Mar. 31, 2018	Mar. 31, 2017
5.50% Senior Notes due 2022
Condensed Cash Flow Statements Captions [Line Items]
Interest rate	5.50%
6.75% Senior Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate	6.75%
4.125% Senior Secured Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate		4.125%
4.875% Senior Secured Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate		4.875%
6.00% Senior Secured Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate		6.00%
6.25% Senior Secured Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate		6.25%
5.625% Senior Secured Notes
Condensed Cash Flow Statements Captions [Line Items]
Interest rate		5.625%