Description of Business and Summary of Significant Accounting Policies | Description of Business and Significant Accounting Policies Business Symantec Corporation (“Symantec,” the “Company,” “we,” “us,” and “our” refer to Symantec Corporation and all of its subsidiaries) is a global leader in cybersecurity. We provide security products, services and solutions to organizations and individuals. Our Integrated Cyber Defense platform helps enterprise, business and government customers unify cloud and on-premises security to protect against threats and safeguard information across every control point and attack vector. Our Cyber Safety Solutions (delivered through our Norton and LifeLock offerings) help consumers protect their information, identities, devices and networks at home and online. Principles of consolidation The accompanying consolidated financial statements of Symantec and our wholly-owned subsidiaries are prepared in conformity with generally accepted accounting principles in the United States (“GAAP”). All significant intercompany accounts and transactions have been eliminated in consolidation. Fiscal calendar We have a 52/53-week fiscal year ending on the Friday closest to March 31. Our fiscal years 2018 , 2017 and 2016 were each 52-week years. Use of estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Estimates are based upon historical factors, current circumstances and the experience and judgment of management. Management evaluates its assumptions and estimates on an ongoing basis and may engage outside subject matter experts to assist in its valuations. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include those related to the allocation of revenue recognized and deferred amounts, valuation of business combinations including acquired intangible assets and goodwill, loss contingencies, and the recognition and measurement of current and deferred income taxes, including the measurement of uncertain tax positions. Revenue recognition General We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred, the fee is fixed or determinable, and collectability is probable. Revenue is recognized net of allowances for returns, discounts, distributor incentives and end-user rebates, and any taxes collected from customers and subsequently remitted to governmental authorities. For arrangements that include both software and non-software elements, we allocate revenue to the software deliverables as a group and non-software deliverables based on their relative selling prices. In such circumstances, we use a hierarchy to determine the fair value to be used for the relative selling price allocation: (i) vendor-specific objective evidence of fair value (“VSOE”), (ii) third-party evidence (“TPE”), and (iii) estimated selling price (“ESP”). VSOE is based on historical stand-alone sales or the stated renewal rate for maintenance in certain license arrangements. When we are unable to establish a selling price using VSOE or TPE, we use ESP in the allocation of arrangement consideration. The objective of ESP for non-software elements is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. The determination of ESP is made through consultation with and formal approval by our management, taking into consideration the go-to-market strategy, pricing factors and historical transactions. For software arrangements that include multiple elements, including perpetual software licenses, maintenance, services, and packaged products with content updates and subscriptions, we allocate and defer revenue for the undelivered items based on VSOE of the fair value of the undelivered elements, and recognize the difference between the total arrangement fee and the amount deferred for the undelivered items as license revenue. When VSOE does not exist for serial undelivered items, the entire arrangement fee is recognized ratably over the performance period. When VSOE does not exist for a discrete undelivered item, consideration for the entire arrangement is deferred until that item is delivered. For non-software arrangements that include multiple elements, we allocate revenue to each element based upon the relative selling price of each element. We use a hierarchy to determine the fair value to be used for the relative selling price allocation: (i) VSOE, (ii) TPE, and (iii) ESP. The revenue allocated to each element is recognized when all revenue recognition criteria are met for that element. We expect our distributors and resellers to maintain adequate inventory of consumer packaged products to meet future customer demand, which is generally four or six weeks of customer demand based on recent buying trends. We ship product to our distributors and resellers at their request and based on valid purchase orders. Our distributors and resellers base the quantity of orders on their estimates to meet future customer demand, which may exceed the expected level of a four or six week supply. We offer limited rights of return if the inventory held by our distributors and resellers is below the expected level of a four or six week supply. We estimate reserves for product returns as described below. We typically offer rights of return if inventory held by our distributors and resellers exceeds the expected level. Because we cannot reasonably estimate the amount of excess inventory that will be returned, we primarily offset deferred revenue against trade accounts receivable for the amount of revenue in excess of the expected inventory levels. Enterprise Security Revenue for our Enterprise Security products is earned from arrangements that can include various combinations of software, hardware, and services, and sold directly to end-users or through a multi-tiered distribution channel. We offer channel rebates and marketing programs for our Enterprise Security products. Our estimated reserves for channel volume incentive rebates are based on distributors’ and resellers’ actual performance against the terms and conditions of volume incentive rebate programs, which are typically entered into quarterly. Our reserves for end-user rebates are estimated based on the terms and conditions of the promotional programs, actual sales during the promotion, the amount of actual redemptions received, historical redemption trends by product and by type of promotional program, and the value of the rebate. If actual redemptions differ from our estimates, differences may result in the amount and timing of our net revenues for any period presented. As of March 30, 2018 and March 31, 2017 , we had reserves for Enterprise Security rebates and marketing programs of $6 million and $11 million , respectively. Consumer Digital Safety We sell consumer products directly to end-users and consumer packaged software products through a multi-tiered distribution channel. For consumer products that include content updates, we recognize revenue ratably over the term of the subscription upon sell-through to end-users, as the subscription period commences on the date of sale to the end-user. We offer channel and end-user rebates for our Consumer Digital Safety products. Our estimated reserves for channel volume incentive rebates are based on distributors’ and resellers’ actual performance against the terms and conditions of volume incentive rebate programs, which are typically entered into quarterly. Our reserves for end-user rebates are estimated based on the terms and conditions of the promotional program, actual sales during the promotion, the amount of actual redemptions received, historical redemption trends by product and by type of promotional program, and the value of the rebate. We estimate and record reserves for channel and end-user rebates as an offset to revenue or deferred revenue. As of March 30, 2018 and March 31, 2017 , we had reserves for Consumer Digital Safety rebates of $21 million and $18 million , respectively. For consumer products that include content updates, rebates are recorded as a ratable offset to revenue or deferred revenue over the term of the subscription. Fair value measurements For assets and liabilities measured at fair value, fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value, we consider the principal or most advantageous market in which we would transact, and we consider assumptions that market participants would use when pricing the asset or liability. The three levels of inputs that may be used to measure fair value are: • Level 1: Quoted prices in active markets for identical assets or liabilities. • Level 2: Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in less active markets or model-derived valuations. All significant inputs used in our valuations, such as discounted cash flows, are observable or can be derived principally from or corroborated with observable market data for substantially the full term of the assets or liabilities. • Level 3: Unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of assets or liabilities. We monitor and review the inputs and results of these valuation models to help ensure the fair value measurements are reasonable and consistent with market experience in similar asset classes. Assets measured and recorded at fair value Cash equivalents . We consider all highly liquid investments with an original maturity of three months or less at the time of purchase to be cash equivalents. Cash equivalents are carried at amounts that approximate fair value due to the short period of time to maturity. Short-term investments . Short-term investments consist of investment and marketable equity securities that are classified as available-for-sale and recognized at fair value using Level 1 and Level 2 inputs, which are quoted using market prices, independent pricing vendors, or other sources, to determine the fair value. Unrealized gains and losses, net of tax, are included in accumulated other comprehensive income. We regularly review our investment portfolio to identify and evaluate investments that have indications of impairment. Factors considered in determining whether a loss is other-than-temporary include: the length of time and extent to which the fair value has been lower than the cost basis, the financial condition and near-term prospects of the investee, credit quality, likelihood of recovery, and our ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value. Derivatives not designated as hedges. We have entered into foreign exchange forward contracts with up to 6 months in duration to mitigate our foreign currency risk. These foreign exchange forward contracts are derivatives not designated as hedges and recognized at fair value using Level 2 inputs to determine the fair value. Non-marketable equity investments We make equity investments in privately-held companies, which includes the B common shares we received as a portion of the net consideration in the sale of our information management business, Veritas Technology LLC (“Veritas”), and the outstanding common stock of DigiCert Parent Inc. (“DigiCert”) we received as a portion of the net consideration in the sale of our website security (“WSS”) and public key infrastructure (“PKI”) solutions. We account for the investment in Veritas under the cost method of accounting. We account for the investment in DigiCert under the equity method and record our interest in the net earnings (loss) of DigiCert based on the most recently available financial statements of DigiCert, which are provided to us on a three-month lag, along with adjustments for amortization of basis differences, in Other income (expense), net in our Consolidated Statements of Operations. We assess the recoverability of our non-marketable equity investments by reviewing various indicators of impairment. If indicators are present, a fair value measurement is made by performing a discounted cash flow analysis of the investment. If a decline in value is determined to be other-than-temporary, impairment is recognized and included in Other income (expense), net . Accounts receivable Accounts receivable are recorded at the invoiced amount and are not interest bearing. We maintain an allowance for doubtful accounts to reserve for potentially uncollectible receivables. We review our accounts receivables by aging category to identify specific customers with known disputes or collectability issues. In addition, we maintain an allowance for all other receivables not included in the specific reserve by applying specific percentages of projected uncollectible receivables to the various aging categories. In determining these percentages, we use judgment based on our historical collection experience and current economic trends. We also offset deferred revenue against accounts receivable when channel inventories are in excess of specified levels and for transactions where collection of a receivable is not considered probable. Property and equipment Property, equipment, and leasehold improvements are stated at cost, net of accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives. Estimated useful lives for financial reporting purposes are as follows: buildings, 20 to 30 years; building improvements, 7 to 20 years; leasehold improvements, the lesser of the life of the improvement or the initial lease term; computer hardware and software, and office furniture and equipment, 3 to 5 years. Software development costs The costs for the development of new software products and substantial enhancements to existing software products are expensed as incurred until technological feasibility has been established, at which time any additional costs would be capitalized in accordance with the accounting guidance for software. Because our current process for developing software is essentially completed concurrently with the establishment of technological feasibility, which occurs upon the completion of a working model, no costs have been capitalized for any of the periods presented. Internal-use software development costs We capitalize qualifying costs incurred during the application development stage related to software developed for internal-use and enterprise cloud computing services, and amortize them over the estimated useful life of 3 years. We expense costs incurred related to the planning and post-implementation phases of development as incurred. As of March 30, 2018 and March 31, 2017 , capitalized costs, net of amortization, were $100 million . Business combinations We use the acquisition method of accounting under the authoritative guidance on business combinations. We allocate the purchase price of our acquisitions to the assets acquired and liabilities assumed based on their estimated fair values. The excess of the purchase price over the fair values of these identifiable assets and liabilities is recorded as goodwill. Acquisition-related expenses are recognized separately from the business combination and are expensed as incurred. Each acquired company’s operating results are included in our Consolidated Financial Statements starting on the date of acquisition. Goodwill Goodwill is recorded when consideration paid for an acquisition exceeds the fair value of net tangible and intangible assets acquired. We perform an impairment assessment of goodwill at the reporting unit level at least annually in the fourth quarter of each fiscal year, or more frequently if events or changes in circumstances indicate that the asset may be impaired. For purpose of testing goodwill for impairment, we established reporting units based on our current reporting structure and our goodwill was allocated to the Enterprise Security and Consumer Digital Safety reporting units. The accounting guidance gives us the option to perform a qualitative assessment to determine whether further impairment testing is necessary. The qualitative assessment considers events and circumstances that might indicate that a reporting unit’s fair value is less than its carrying amount. If it is determined, as a result of the qualitative assessment, that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, a quantitative test is performed. In connection with the sale of WSS and PKI solutions, on August 2, 2017, we performed a quantitative test at the reporting unit level and determined the fair value substantially exceeded the carrying amount of each reporting unit and, therefore, found no impairment of goodwill. In addition, in the fourth quarter of the fiscal year ended March 30, 2018, we performed a qualitative assessment and concluded that it is more likely than not that the fair values are more than their carrying values. Accordingly, there was no indication of impairment, and further quantitative testing was not required. Long-lived assets In connection with our acquisitions, we generally recognize assets for customer relationships, developed technology, finite-lived trade names, patents, and indefinite-lived trade names. Finite-lived intangible assets are carried at cost less accumulated amortization. Such amortization is provided on a straight-line basis over the estimated useful lives of the respective assets, generally from 1 to 11 years. Amortization for developed technology is recognized in cost of revenue. Amortization for customer relationships and certain trade names is recognized in operating expenses. Indefinite-lived intangible assets are not subject to amortization but instead tested for impairment annually or more frequently if events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Long-lived assets, including intangible assets and property and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be recoverable. The evaluation is performed at the lowest level of identifiable cash flows independent of other assets. An impairment loss is recognized when estimated undiscounted future cash flows generated from the assets are less than their carrying amount. Measurement of an impairment loss is based on the excess of the carrying amount of the asset group over its fair value. Debt Our debt includes senior unsecured notes, senior term loans, convertible senior notes, and a senior unsecured revolving credit facility. Our senior unsecured notes are recorded at par value at issuance less a discount representing the amount by which the face value exceeds the fair value at the date of issuance and an amount which represents issuance costs. Our senior term loans are recorded at par value less debt issuance costs, which are recorded as a reduction in the carrying value of the debt. Our convertible senior notes are recorded at par value less the fair value of the equity component of the notes, at their issuance date, determined using Level 2 inputs and less any issuance costs. The discount and issuance costs associated with the various notes are amortized using the effective interest rate method over the term of the debt as a non-cash charge to interest expense. Borrowings under our revolving credit facility, if any, are recognized at principal balance plus accrued interest based upon stated interest rates. Debt maturities are classified as current liabilities on our Consolidated Balance Sheets if we are contractually obligated to repay them in the next twelve months or, prior to the balance sheet date, we have the authorization and intent to repay them prior to their contractual maturities and within the next twelve months. Restructuring Restructuring actions generally include significant actions involving employee-related severance charges and contract termination costs. Employee-related severance charges are largely based upon substantive severance plans, while some charges result from mandated requirements in certain foreign jurisdictions. These charges are reflected in the period when both the actions are probable and the amounts are estimable. Contract termination costs for leased facilities primarily reflect costs that will continue to be incurred under the contract for its remaining term without economic benefit to us. These charges are reflected in the period when the facility ceases to be used. Income taxes We compute the provision for income taxes using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating losses and tax credit carryforwards in each jurisdiction in which we operate. We measure deferred tax assets and liabilities using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets are expected to be realized or settled. We also assess the likelihood that deferred tax assets will be realized from future taxable income and, based on this assessment establish a valuation allowance, if required. The determination of our valuation allowance involves assumptions, judgments and estimates, including forecasted earnings, future taxable income, and the relative proportions of revenue and income before taxes in the various domestic and international jurisdictions in which we operate. To the extent we establish a valuation allowance or change the valuation allowance in a period, we reflect the change with a corresponding increase or decrease to our tax. Stock-based compensation We measure and recognize stock-based compensation for all stock-based awards, including restricted stock units (“RSU”), performance-based restricted stock units (“PRU”), stock options, and rights to purchase shares under our employee stock purchase plan (“ESPP”), based on their estimated fair value on the grant date. We recognize the costs in our financial statements on a straight-line basis over the award’s requisite service period except for PRUs with graded vesting, for which we recognize the costs on a graded basis. For awards with performance conditions, the amount of compensation cost we recognize over the requisite service period is based on the actual or estimated achievement of the performance condition. We estimate the number of stock-based awards that will be forfeited due to employee turnover. The fair value of each RSU and PRU that does not contain a market condition is equal to the market value of our common stock on the date of grant. The fair value of each PRU that contains a market condition is estimated using the Monte Carlo simulation option pricing model. The fair values of RSUs and PRUs are not discounted by the dividend yield because our RSUs and PRUs include dividend-equivalent rights (“DER”). We use the Black-Scholes model to determine the fair value of unvested stock options assumed in acquisitions and the fair value of rights to acquire shares of common stock under our ESPP . The Black-Scholes valuation model incorporates a number of variables, including our expected stock price volatility over the expected life of the awards, actual and projected employee exercise and forfeiture behaviors, risk-free interest rates, and expected dividends. We have certain liability-classified stock-based compensation awards for which the service inception date precedes the grant date. For these awards, we recognize stock-based compensation expense on a straight-line basis over the service period. The liability is reclassified to Additional paid-in capital in our Consolidated Balance Sheets when the award is granted. There is no substantive future service period that exists at the grant date for these awards . Foreign currency For foreign subsidiaries whose functional currency is the local currency, assets and liabilities are translated to U.S. dollars at exchange rates in effect at the balance sheet date. Gains and losses resulting from translation of these foreign currency financial statements into U.S. dollars are recorded in accumulated other comprehensive income (“AOCI”). Remeasurement adjustments are recorded in Other income (expense), net . Concentrations of risk A significant portion of our revenue is derived from international sales and independent agents and distributors. Fluctuations of the U.S. dollar against foreign currencies, changes in local regulatory or economic conditions, piracy, or nonperformance by independent agents or distributors could adversely affect our operating results. Financial instruments that potentially subject us to concentrations of risk consist principally of cash and cash equivalents, short-term investments, and trade accounts receivable. Our investment policy limits the amount of credit risk exposure to any one issuer and to any one country. The credit risk in our trade accounts receivable is substantially mitigated by our credit evaluation process, reasonably short collection terms, and the geographical dispersion of sales transactions. Customers which are distributors that accounted for over 10% of our net accounts receivable, are as follows: March 30, 2018 March 31, 2017 Customer A 22 % 12 % Customer B 15 % — Customer C — 14 % Advertising and other promotional costs Advertising and other promotional costs are charged to operations as incurred and included in sales and marketing expenses. These costs totaled $360 million , $212 million , and $211 million for fiscal 2018 , 2017 , and 2016 , respectively. Contingencies We evaluate contingent liabilities including threatened or pending litigation in accordance with the authoritative guidance on contingencies. We assess the likelihood of any adverse judgments or outcomes from potential claims or proceedings, as well as potential ranges of probable losses, when the outcomes of the claims or proceedings are probable and reasonably estimable. A determination of the amount of an accrual required, if any, for these contingencies is made after the analysis of each separate matter. Because of uncertainties related to these matters, we base our estimates on the information available at the time of our assessment. As additional information becomes available, we reassess the potential liability related to our pending claims and litigation and may revise our estimates. Sales commissions Sales commissions that are incremental and directly related to customer sales contracts in which revenue is deferred are accrued and capitalized upon execution of a non-cancelable customer contract, and subsequently expensed over the term of such contract in proportion to the related future revenue streams. Reclassification Certain amounts in the prior years have been reclassified to conform to the current year presentation. |