Summary Of Significant Accounting Policies | Summary of Significant Accounting Policies Description of Business We purchase and roast high-quality coffees that we sell, along with handcrafted coffee and tea beverages and a variety of fresh and prepared food items, through our company-operated stores. We also sell a variety of coffee and tea products and license our trademarks through other channels such as licensed stores, grocery and national foodservice accounts. In this 10-K, Starbucks Corporation (together with its subsidiaries) is referred to as “Starbucks,” the “Company,” “we,” “us” or “our.” We have four reportable operating segments: 1) Americas, which is inclusive of the U.S., Canada, and Latin America; 2) China/Asia Pacific (“CAP”); 3) Europe, Middle East, and Africa (“EMEA”) and 4) Channel Development. We also have several non-reportable operating segments, including Teavana, Seattle's Best Coffee and Evolution Fresh, as well as certain developing businesses such as Siren Retail, which includes the Starbucks Reserve TM Roastery & Tasting Rooms, Starbucks Reserve brand and products and Princi operations, which are combined and referred to as All Other Segments. Unallocated corporate operating expenses, which pertain primarily to corporate administrative functions that support the operating segments but are not specifically attributable to or managed by any segment, are presented as a reconciling item between total segment operating results and consolidated financial results. Additional details on the nature of our business and our reportable operating segments are included in Note 16 , Segment Reporting. Principles of Consolidation Our consolidated financial statements reflect the financial position and operating results of Starbucks, including wholly-owned subsidiaries and investees that we control. Investments in entities that we do not control, but have the ability to exercise significant influence over operating and financial policies, are accounted for under the equity method. Investments in entities in which we do not have the ability to exercise significant influence are accounted for under the cost method. Intercompany transactions and balances have been eliminated. Fiscal Year End Our fiscal year ends on the Sunday closest to September 30. Fiscal year 2017 and 2015 included 52 weeks. Fiscal year 2016 included 53 weeks, with the 53 rd week falling in the fourth fiscal quarter. Estimates and Assumptions Preparing financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Examples include, but are not limited to, estimates for inventory reserves, asset and goodwill impairments, assumptions underlying self-insurance reserves, income from unredeemed stored value cards, stock-based compensation forfeiture rates, future asset retirement obligations and the potential outcome of future tax consequences of events that have been recognized in the financial statements. Actual results and outcomes may differ from these estimates and assumptions. Cash and Cash Equivalents We consider all highly liquid instruments with maturities of three months or less at the time of purchase, as well as credit card receivables for sales to customers in our company-operated stores that generally settle within two to five business days, to be cash equivalents. We maintain cash and cash equivalent balances with financial institutions that exceed federally-insured limits. We have not experienced any losses related to these balances, and we believe credit risk to be minimal. Our cash management system provides for the funding of all major bank disbursement accounts on a daily basis as checks are presented for payment. Under this system, outstanding checks are in excess of the cash balances at certain banks, which creates book overdrafts. Book overdrafts are presented as a current liability in accrued liabilities on our consolidated balance sheets. Investments Available-for-sale Securities Our short-term and long-term investments consist primarily of investment-grade debt securities, all of which are classified as available-for-sale. Available-for-sale securities are recorded at fair value, and unrealized holding gains and losses are recorded, net of tax, as a component of accumulated other comprehensive income. Available-for-sale securities with remaining maturities of less than one year and those identified by management at the time of purchase to be used to fund operations within one year are classified as short-term. All other available-for-sale securities are classified as long-term. We evaluate our available-for-sale securities for other than temporary impairment on a quarterly basis. Unrealized losses are charged against net earnings when a decline in fair value is determined to be other than temporary. We review several factors to determine whether a loss is other than temporary, such as the length and extent of the fair value decline, the financial condition and near-term prospects of the issuer and whether we have the intent to sell or will more likely than not be required to sell before the securities' anticipated recovery, which may be at maturity. Realized gains and losses are accounted for using the specific identification method. Purchases and sales are recorded on a trade date basis. Trading Securities We also have a trading securities portfolio, which is comprised of marketable equity mutual funds and equity exchange-traded funds. Trading securities are recorded at fair value and approximates a portion of our liability under our Management Deferred Compensation Plan (“MDCP”). Gains or losses from the portfolio and the change in our MDCP liability are recorded in our consolidated statements of earnings. Equity and Cost Method Investments Equity investments are accounted for using the equity method of accounting if the investment gives us the ability to exercise significant influence, but not control, over an investee. Equity method investments are included within long-term investments on our consolidated balance sheets. Our share of the earnings or losses as reported by equity method investees are classified as income from equity investees on our consolidated statements of earnings. Equity investments for which we do not have the ability to exercise significant influence are accounted for using the cost method of accounting and are recorded in long-term investments on our consolidated balance sheets. Under the cost method, investments are carried at cost and are adjusted only for other-than-temporary declines in fair value, certain distributions and additional investments. We evaluate our equity and cost method investments for impairment annually and when facts and circumstances indicate that the carrying value of such investments may not be recoverable. We review several factors to determine whether the loss is other than temporary, such as the length and extent of the fair value decline, the financial condition and near-term prospects of the investee, and whether we have the intent to sell or will more likely than not be required to sell before the investment’s anticipated recovery. If a decline in fair value is determined to be other than temporary, an impairment charge is recorded in net earnings. Fair Value Fair value is the price we would receive to sell an asset or pay to transfer a liability (exit price) in an orderly transaction between market participants. For assets and liabilities recorded or disclosed at fair value on a recurring basis, we determine fair value based on the following: Level 1: The carrying value of cash and cash equivalents approximates fair value because of the short-term nature of these instruments. For trading and U.S. government treasury securities and commodity futures contracts, we use quoted prices in active markets for identical assets to determine fair value. Level 2: When quoted prices in active markets for identical assets are not available, we determine the fair value of our available-for-sale securities and our over-the-counter forward contracts, collars and swaps based upon factors such as the quoted market price of similar assets or a discounted cash flow model using readily observable market data, which may include interest rate curves and forward and spot prices for currencies and commodities, depending on the nature of the investment. The fair value of our long-term debt is estimated based on the quoted market prices for the same or similar issues or on the current rates offered to us for debt of the same remaining maturities. Level 3: We determine the fair value of our auction rate securities using an internally-developed valuation model, using inputs that include interest rate curves, credit and liquidity spreads and effective maturity. Assets and liabilities recognized or disclosed at fair value on a nonrecurring basis include items such as property, plant and equipment, goodwill and other intangible assets, equity and cost method investments and other assets. We determine the fair value of these items using Level 3 inputs, as described in the related sections below. Derivative Instruments We manage our exposure to various risks within our consolidated financial statements according to a market price risk management policy. Under this policy, we may engage in transactions involving various derivative instruments to hedge interest rates, commodity prices and foreign currency denominated revenue streams, inventory purchases, assets and liabilities and investments in certain foreign operations. In order to manage our exposure to these risks, we use various types of derivative instruments including forward contracts, commodity futures contracts, collars and swaps. Forward contracts and commodity futures contracts are agreements to buy or sell a quantity of a currency or commodity at a predetermined future date and at a predetermined rate or price. A collar is a strategy that uses a combination of a purchased call option and a sold put option with equal premiums to hedge a portion of anticipated cash flows, or to limit the range of possible gains or losses on an underlying asset or liability to a specific range. A swap agreement is a contract between two parties to exchange cash flows based on specified underlying notional amounts, assets and/or indices. We do not enter into derivative instruments for speculative purposes. We record all derivatives on our consolidated balance sheets at fair value. Excluding interest rate swaps and foreign currency debt, we generally do not enter into derivative instruments with maturities longer than three years or offset derivative assets and liabilities in our consolidated balance sheets. However, we are allowed to net settle transactions with respective counterparties for certain derivative contracts, inclusive of interest rate swaps and foreign currency forwards, with a single, net amount payable by one party to the other. We also enter into collateral security arrangements that provide for collateral to be received or posted when the net fair value of certain financial instruments fluctuates from contractually established thresholds. As of October 1, 2017 and October 2, 2016 , we received and posted $5.8 million and $19.5 million , respectively, of cash collateral related to the derivative instruments under collateral security arrangements. As of October 1, 2017 and October 2, 2016 , the potential effects of netting arrangements with our derivative contracts, excluding the effects of collateral, would be a reduction to both derivative assets and liabilities of $7.4 million and $9.4 million , respectively, resulting in net derivative assets of $30.4 million a nd net derivative liabilities of $ 31.1 million as of October 1, 2017 , and net derivative assets of $24.7 million and net derivative liabilities of $ 80.2 million as of October 2, 2016 . By using these derivative instruments, we expose ourselves to potential credit risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. We minimize this credit risk by entering into transactions with carefully selected, credit-worthy counterparties and distribute contracts among several financial institutions to reduce the concentration of credit risk. Cash Flow Hedges For derivative instruments that are designated and qualify as a cash flow hedge, the effective portion of the derivative's gain or loss is reported as a component of other comprehensive income (“OCI”) and recorded in accumulated other comprehensive income (“AOCI”) on our consolidated balance sheets. The gain or loss is subsequently reclassified into net earnings when the hedged exposure affects net earnings. To the extent that the change in the fair value of the contract corresponds to the change in the value of the anticipated transaction using forward rates on a monthly basis, the hedge is considered effective and is recognized as described above. The remaining change in fair value of the contract represents the ineffective portion, which is immediately recorded in interest income and other, net on our consolidated statements of earnings. Cash flow hedges related to anticipated transactions are designated and documented at the inception of each hedge by matching the terms of the contract to the underlying transaction. Cash flows from hedging transactions are classified in the same categories as the cash flows from the respective hedged items. Once established, cash flow hedges generally remain designated as such until the hedged item impacts net earnings, or the anticipated transaction is no longer likely to occur. For de-designated cash flow hedges or for transactions that are no longer likely to occur, the related accumulated derivative gains or losses are recognized in interest income and other, net or interest expense on our consolidated statements of earnings based on the nature of the underlying transaction. Net Investment Hedges For derivative instruments that are designated and qualify as a net investment hedge, the effective portion of the derivative's gain or loss is reported as a component of OCI and recorded in AOCI. The gain or loss will be subsequently reclassified into net earnings when the hedged net investment is either sold or substantially liquidated. To the extent that the change in the fair value of the forward contract corresponds to the change in value of the anticipated transactions using spot rates on a monthly basis, the hedge is considered effective and is recognized as described above. The remaining change in fair value of the forward contract represents the ineffective portion, which is immediately recognized in interest income and other, net on our consolidated statements of earnings. Fair Value Hedges For derivative instruments that are designated and qualify as a fair value hedge, the changes in fair value of the derivative instruments and the offsetting changes in fair values of the underlying hedged item are recorded in interest income and other, net or interest expense on our consolidated statements of earnings. Derivatives Not Designated As Hedging Instruments We also enter into certain foreign currency forward contracts, commodity futures contracts, collars and swaps that are not designated as hedging instruments for accounting purposes. The change in the fair value of these contracts is immediately recognized in interest income and other, net on our consolidated statements of earnings. Normal Purchase Normal Sale We enter into fixed-price and price-to-be-fixed green coffee purchase commitments, which are described further at Note 5 , Inventories. For both fixed-price and price-to-be-fixed purchase commitments, we expect to take delivery of and to utilize the coffee in a reasonable period of time and in the conduct of normal business. Accordingly, these purchase commitments qualify as normal purchases and are not recorded at fair value on our balance sheets. Refer to Note 3 , Derivative Financial Instruments, and Note 5 , Inventories, for further discussion of our derivative instruments and green coffee purchase commitments. Receivables, net of Allowance for Doubtful Accounts Our receivables are mainly comprised of receivables for product and equipment sales to and royalties from our licensees, as well as receivables from our consumer packaged goods (“CPG”) and foodservice business customers. Our allowance for doubtful accounts is calculated based on historical experience, customer credit risk and application of the specific identification method. As of October 1, 2017 and October 2, 2016 , our allowance for doubtful accounts was $9.8 million and $9.4 million , respectively. Inventories Inventories are stated at the lower of cost (primarily moving average cost) or market. We record inventory reserves for obsolete and slow-moving inventory and for estimated shrinkage between physical inventory counts. Inventory reserves are based on inventory obsolescence trends, historical experience and application of the specific identification method. As of October 1, 2017 and October 2, 2016 , inventory reserves were $38.4 million and $39.6 million , respectively. Property, Plant and Equipment Property, plant and equipment, which includes assets under capital leases, are carried at cost less accumulated depreciation. Cost includes all direct costs necessary to acquire and prepare assets for use, including internal labor and overhead in some cases. Depreciation is computed using the straight-line method over estimated useful lives of the assets, generally ranging from 2 to 15 years for equipment and 30 to 40 years for buildings. Leasehold improvements are amortized over the shorter of their estimated useful lives or the related lease life, generally 10 years . For leases with renewal periods at our option, we generally use the original lease term, excluding renewal option periods, to determine estimated useful lives. If failure to exercise a renewal option imposes an economic penalty to us, we may determine at the inception of the lease that renewal is reasonably assured and include the renewal option period in the determination of the appropriate estimated useful lives. The portion of depreciation expense related to production and distribution facilities is included in cost of sales including occupancy costs on our consolidated statements of earnings. The costs of repairs and maintenance are expensed when incurred, while expenditures for refurbishments and improvements that significantly add to the productive capacity or extend the useful life of an asset are capitalized. When assets are disposed of, whether through retirement or sale, the net gain or loss is recognized in net earnings. Long-lived assets to be disposed of are reported at the lower of their carrying amount or fair value less estimated costs to sell. We evaluate property, plant and equipment for impairment when facts and circumstances indicate that the carrying values of such assets may not be recoverable. When evaluating for impairment, we first compare the carrying value of the asset to the asset’s estimated future undiscounted cash flows. If the estimated undiscounted future cash flows are less than the carrying value of the asset, we determine if we have an impairment loss by comparing the carrying value of the asset to the asset's estimated fair value and recognize an impairment charge when the asset’s carrying value exceeds its estimated fair value. The fair value of the asset is estimated using a discounted cash flow model based on forecasted future revenues and operating costs, using internal projections. Property, plant and equipment assets are grouped at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. For company-operated store assets, the impairment test is performed at the individual store asset group level. We recognized net disposition charges of $46.9 million , $25.1 million , and $12.5 million in fiscal 2017 , 2016 , and 2015 , respectively. Additionally, we recognized net impairment charges of $56.1 million , $24.1 million , and $25.8 million in fiscal 2017 , 2016 , and 2015 , respectively, of which $39.9 million in fiscal 2017 were restructuring related and recorded in restructuring and impairment expenses. Unless it is restructuring related, the nature of the underlying asset that is impaired or disposed of will determine the operating expense line on which the related impact is recorded on our consolidated statements of earnings. For assets within our retail operations, net impairment and disposition charges are recorded in store operating expenses. For all other assets, these charges are recorded in cost of sales including occupancy costs, other operating expenses or general and administrative expenses. Goodwill We evaluate goodwill for impairment annually during our third fiscal quarter, or more frequently if an event occurs or circumstances change, such as material deterioration in performance or a significant number of store closures, that would indicate that impairment may exist. When evaluating goodwill for impairment, we may first perform a qualitative assessment to determine whether it is more likely than not that a reporting unit is impaired. If we do not perform a qualitative assessment, or if we determine that it is not more likely than not that the fair value of the reporting unit exceeds its carrying amount, we calculate the estimated fair value of the reporting unit. Fair value is the price a willing buyer would pay for the reporting unit and is typically calculated using a discounted cash flow model. For certain reporting units, where deemed appropriate, we may also utilize a market approach for estimating fair value. If the carrying amount of the reporting unit exceeds the estimated fair value, an impairment charge is recorded to reduce the carrying value to the estimated fair value. As part of our ongoing operations, we may close certain stores within a reporting unit containing goodwill due to underperformance of the store or inability to renew our lease, among other reasons. We may abandon certain assets associated with a closed store, including leasehold improvements and other non-transferable assets. When a portion of a reporting unit that constitutes a business is to be disposed of, goodwill associated with the business is included in the carrying amount of the business in determining any loss on disposal. Our evaluation of whether the portion of a reporting unit being disposed of constitutes a business occurs on the date of abandonment. Although an operating store meets the accounting definition of a business prior to abandonment, it does not constitute a business on the closure date because the remaining assets on that date do not constitute an integrated set of assets that are capable of being managed for the purpose of providing a return to investors. As a result, when closing individual stores, we do not include goodwill in the calculation of any loss on disposal of the related assets. As noted above, if store closures are indicative of potential impairment of goodwill at the reporting unit level, we perform an evaluation of our reporting unit goodwill when such closures occur. Due to the strategic decision to close Teavana branded retail stores and our subsequent review of this reporting unit's fair value, we recorded goodwill impairment charges of $69.3 million during the third quarter of fiscal 2017. Additionally, we recorded a partial goodwill impairment of $17.9 million related to our Switzerland retail reporting unit during the third quarter of fiscal 2017, primarily due to ongoing macro economic factors. There were no material goodwill impairment charges recorded during fiscal 2016 and 2015 . Refer to Note 8 , Other Intangible Assets and Goodwill, for further discussions. Other Intangible Assets Other intangible assets include finite-lived intangible assets, which mainly consist of acquired and reacquired rights, trade secrets, licensing agreements, contract-based patents and copyrights. These assets are amortized over their estimated useful lives and are tested for impairment using a similar methodology to our property, plant and equipment, as described above. Indefinite-lived intangibles, which consist primarily of trade names and trademarks, are tested for impairment annually during the third fiscal quarter, or more frequently if an event occurs or circumstances change that would indicate that impairment may exist. When evaluating other intangible assets for impairment, we may first perform a qualitative assessment to determine whether it is more likely than not that an intangible asset group is impaired. If we do not perform the qualitative assessment, or if we determine that it is not more likely than not that the fair value of the intangible asset group exceeds its carrying amount, we calculate the estimated fair value of the intangible asset group. Fair value is the price a willing buyer would pay for the intangible asset group and is typically calculated using an income approach, such as a relief-from-royalty model. If the carrying amount of the intangible asset group exceeds the estimated fair value, an impairment charge is recorded to reduce the carrying value to the estimated fair value. In addition, we continuously monitor and may revise our intangible asset useful lives if and when facts and circumstances change. There were no significant other intangible asset impairment charges recorded during fiscal 2017 , 2016 , and 2015 . Insurance Reserves We use a combination of insurance and self-insurance mechanisms, including a wholly-owned captive insurance entity and participation in a reinsurance treaty, to provide for the potential liabilities for certain risks, including workers’ compensation, healthcare benefits, general liability, property insurance and director and officers’ liability insurance. Liabilities associated with the risks that are retained by us are not discounted and are estimated, in part, by considering historical claims experience, demographics, exposure and severity factors and other actuarial assumptions. Revenue Recognition Consolidated revenues are presented net of intercompany eliminations for wholly-owned subsidiaries and investees controlled by us and for product sales to and royalty and other fees from licensees accounted for under the equity method. Additionally, consolidated revenues are recognized net of any discounts, returns, allowances and sales incentives, including coupon redemptions and rebates. Company-operated Store Revenues Company-operated store revenues are recognized when payment is tendered at the point of sale. Company-operated store revenues are reported net of sales, use or other transaction taxes that are collected from customers and remitted to taxing authorities. Licensed Store Revenues Licensed store revenues consist of product and equipment sales to licensees, as well as royalties and other fees paid by licensees. Sales of coffee, tea, food and related products are generally recognized upon shipment to licensees, depending on contract terms. Shipping charges billed to licensees are also recognized as revenue, and the related shipping costs are included in cost of sales including occupancy costs on our consolidated statements of earnings. Initial nonrefundable development fees for licensed stores are recognized upon substantial performance of services for new market business development activities, such as initial business, real estate and store development planning, as well as providing operational materials and functional training courses for opening new licensed retail markets. Additional store licensing fees are recognized when new licensed stores are opened. Royalty revenues based upon a percentage of reported sales, and other continuing fees, such as marketing and service fees, are recognized on a monthly basis when earned. CPG, Foodservice and Other Revenues CPG, foodservice and other revenues primarily include sales of packaged coffee and tea as well as a variety of ready-to-drink beverages and single-serve coffee and tea products to grocery, warehouse clubs and specialty retail stores, sales to our national foodservice accounts, and revenues from sales of products to and license fee revenues from manufacturers that produce and market Starbucks-, Seattle’s Best Coffee- and Tazo-branded products through licensing agreements. Sales of coffee, tea, ready-to-drink beverages and related products to grocery and warehouse club stores are generally recognized when received by the customer or distributor, depending on contract terms. Revenues are recorded net of sales discounts given to customers for trade promotions and other incentives and for sales return allowances, which are determined based on historical patterns. Revenues from sales of products to manufacturers that produce and market Starbucks-, Seattle’s Best Coffee- and Tazo-branded products through licensing agreements are generally recognized when the product is received by the manufacturer or distributor. License fee revenues from manufacturers are based on a percentage of sales and are recognized on a monthly basis when earned. National foodservice account revenues are recognized when the product is received by the customer or distributor. Sales to customers through CPG channels and national foodservice accounts, including sales to national distributors, are recognized net of certain fees paid to the customer. We characterize these fees as a reduction of revenue unless we are able to identify a sufficiently separable benefit from the customer's purchase of our products such that we could have entered into an exchange transaction with a party other than the customer in order to receive such benefit, and we can reasonably estimate the fair value of such benefit. Stored Value Cards Stored value cards, primarily Starbucks Cards, can be activated at our company-operated and most licensed store locations, online at StarbucksStore.com or via mobile devices held by our customers, and at certain other third party locations, such as grocery stores, although they cannot be reloaded at these third party locations. When an amount is loaded onto a stored value card at any of these locations, we recognize a corresponding liability for the full amount loaded onto the card, which is recorded within stored value card liability on our consolidated balance sheets. Stored value cards can be redeemed at company-operated and most licensed stores, as well as online. When a stored value card is redeemed at a company-operated store or online, we recognize revenue by reducing the stored value card liability. When a stored value card is redeemed at a licensed store location, we reduce the corresponding stored value card liability and cash, which is reimbursed to the licensee. There are no expiration dates on our stored value cards, and in most markets, we do not charge service fees that cause a decrement to customer balances. While we will continue to honor all stored value cards presented for payment, management may determine the likelihood of redemption, based on historical experience, is deemed to be remote for certain cards due to long periods of inactivity. In these circumstances, if management also determines there is no requirement for remitting balances to government agencies under unclaimed property laws, unredeemed card balances may then be recognized as breakage income, which is included in interest income and other, net on our consolidated statements of earnings. In fiscal 2017 , 2016 , and 2015 , we recognized breakage income of $104.6 million , $60.5 million , and $39.3 million , respectively. Loyalty Program In the U.S. and Canada, effective April 2016, we modified our transaction-based loyalty program, My Starbucks Rewards ® to a spend-based program, Starbucks Rewards TM . For fiscal 2016, the existing transaction-based programs remain unchanged for other markets. During fiscal 2017, we launched Starbucks Rewards TM in Japan. Customers in the U.S., Canada, and certain other countries who register their Starbucks Card are automatically enrolled in the program. They earn loyalty points (“Stars”) with each purchase at participating Starbucks ® and Teavana TM stores, as well as on certain packaged coffee products purchased in select Starbucks ® stores, online, and through CPG channels. After accumulating a certain number of Stars, the customer earns a reward that can be redeemed for free product that, regardless of where |