(12)   Information About Liberty's Operating Segments

The Company, through its ownership interests in subsidiaries and other companies, is primarily engaged in the media, communications and entertainment industries. The Company identifies its reportable segments as (A) those consolidated subsidiaries that represent 10% or more of its consolidated annual revenue, annual Adjusted OIBDA or total assets and (B) those equity method affiliates whose share of earnings represent 10% or more of the Company's annual pre-tax earnings.

The Company evaluates performance and makes decisions about allocating resources to its operating segments based on financial measures such as revenue and Adjusted OIBDA. In addition, the Company reviews nonfinancial measures such as subscriber growth, churn and penetration.

The Company defines Adjusted OIBDA as revenue less operating expenses, and selling, general and administrative expenses excluding all stock-based compensation. The Company believes this measure is an important indicator of the operational strength and performance of its businesses, including each business's ability to service debt and fund capital expenditures. In addition, this measure allows management to view operating results and perform analytical comparisons and benchmarking between businesses and identify strategies to improve performance. This measure of performance excludes depreciation and amortization, stock-based compensation, separately reported litigation settlements and restructuring and impairment charges that are included in the measurement of operating income pursuant to GAAP. Accordingly, Adjusted OIBDA should be considered in addition to, but not as a substitute for, operating income, net income, cash flow provided by operating activities and other measures of financial performance prepared in accordance with GAAP. The Company generally accounts for intersegment sales and transfers as if the sales or transfers were to third parties, that is, at current prices.

For the three months ended March 31, 2017, the Company has identified SIRIUS XM and Formula 1 as its reportable segments. SIRIUS XM is a consolidated subsidiary that provides a subscription based satellite radio service.  SIRIUS XM transmits music, sports, entertainment, comedy, talk, news, traffic and weather channels as well as infotainment services in the United States on a subscription fee basis through its two proprietary satellite radio systems - the Sirius system and the XM system.  Subscribers can also receive music and other channels, plus features such as SiriusXM On Demand and MySXM, over SIRIUS XM’s Internet radio service, including through applications for mobile devices. Formula 1 is a global motorsports business that holds exclusive commercial rights with respect to the World Championship, an annual, approximately nine-month long, motor race-based competition in which teams compete for the Constructors' Championship and drivers compete for the Drivers' Championship. The World Championship takes place on various circuits with a varying number of events taking place in different countries around the world each season. Formula 1 is responsible for the commercial exploitation and development of the World Championship as well as various aspects of its management and administration. The Company acquired a controlling interest in Formula 1 on January 23, 2017, at which time it began consolidating the results of the Formula 1 business.

The Company's segments are strategic business units that offer different products and services. They are managed separately because each segment requires different technologies, differing revenue sources and marketing strategies. The accounting policies of the segments are the same as those described in the Company's summary of significant policies in the Company's annual financial statements filed on Form 10-K.

Performance Measures

Other Information

The following table provides a reconciliation of segment Adjusted OIBDA to Operating income (loss) and Earnings (loss) from continuing operations before income taxes: