Summary of Significant Accounting Policies	6 Months Ended
Apr. 01, 2018
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	Summary of Significant Accounting Policies Financial Statement Preparation The unaudited condensed consolidated financial statements as of April 1, 2018, and for the quarter and two quarters ended April 1, 2018 and April 2, 2017, have been prepared by Starbucks Corporation under the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, the financial information for the quarter and two quarters ended April 1, 2018 and April 2, 2017 reflects all adjustments and accruals, which are of a normal recurring nature, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods. In this Quarterly Report on Form 10-Q (“10-Q”), Starbucks Corporation is referred to as “Starbucks,” the “Company,” “we,” “us” or “our.” The financial information as of October 1, 2017 is derived from our audited consolidated financial statements and notes for the fiscal year ended October 1, 2017 (“fiscal 2017”) included in Item 8 in the Fiscal 2017 Annual Report on Form 10-K (the “10-K”). The information included in this 10-Q should be read in conjunction with the footnotes and management’s discussion and analysis of the consolidated financial statements in the 10-K. The results of operations for the quarter and two quarters ended April 1, 2018 are not necessarily indicative of the results of operations that may be achieved for the entire fiscal year ending September 30, 2018 (“fiscal 2018”). Recent Accounting Pronouncements In February 2018, the Financial Accounting Standards Board (“FASB”) issued guidance on the reclassification of certain tax effects from accumulated other comprehensive income (“AOCI”). The guidance permits entities to reclassify the stranded tax effects resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from AOCI to retained earnings. The guidance will be effective at the beginning of our first quarter of fiscal year 2020 but permits adoption in an earlier period. The guidance may be applied in the period of adoption or retrospectively to each period in which the effect of the change related to the Tax Act was recognized. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption. In August 2017, the FASB amended its guidance on the financial reporting of hedging relationships. The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness, expands permissible cash flow hedges on contractually specified components, and simplifies hedge documentation and effectiveness assessment. The guidance will be effective at the beginning of our first quarter of fiscal year 2020 and will require a modified retrospective approach on existing cash flow and net investment hedges. The presentation and disclosure requirements will be applied prospectively. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption. In October 2016, the FASB issued guidance on the accounting for income tax effects of intercompany sales or transfers of assets other than inventory. The guidance requires entities to recognize the income tax impact of an intra-entity sale or transfer of an asset other than inventory when the sale or transfer occurs, rather than when the asset has been sold to an outside party. The guidance will require a modified retrospective application with a cumulative catch-up adjustment to opening retained earnings at the beginning of our first quarter of fiscal 2019 but permits adoption in an earlier period. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption. In March 2016, the FASB issued guidance related to stock-based compensation, which changes the accounting and classification of excess tax benefits and minimum tax withholdings on share-based awards. This guidance requires that excess tax benefits and tax deficiencies related to stock-based compensation be prospectively reflected as income tax expense in our consolidated statement of earnings instead of additional paid-in capital on our consolidated balance sheet. Additionally, within our consolidated statement of cash flows, this guidance requires excess tax benefits to be presented as an operating activity, rather than a financing activity, in the same manner as other cash flows related to income taxes. We adopted this guidance in the first quarter of fiscal 2018. The primary impact of the adoption was the recognition of excess tax benefits that reduced income tax expenses by $16.2 million and $44.4 million for the quarter and two quarters ended April 1, 2018, respectively, instead of additional paid-in capital. As a result, net income increased $16.2 million and $44.4 million for the quarter and two quarters ended April 1, 2018, respectively and basic and diluted earnings per share increased $0.01 and $0.03 for the quarter and two quarters ended April 1, 2018, respectively. Excess tax benefits of $52.7 million, for the two quarters ended April 2, 2017, previously reported in financing activities have been reclassified to operating activities in the consolidated statements of cash flows. In March 2016, the FASB issued guidance for financial liabilities resulting from selling prepaid stored value products that are redeemable at third-party merchants. Under the new guidance, expected breakage amounts associated with these products must be recognized proportionately in earnings as redemption occurs. Our current accounting policy of applying the remote method to all of our stored value cards, including cards redeemable at the third-party licensed locations, will no longer be allowed. We will adopt and implement the provisions of this guidance and the new revenue recognition standard issued by the FASB, as discussed below, in the first quarter of fiscal 2019. In February 2016, the FASB issued guidance on the recognition and measurement of leases. Under the new guidance, lessees are required to recognize a lease liability, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet for most leases. The guidance retains the current accounting for lessors and does not make significant changes to the recognition, measurement, and presentation of expenses and cash flows by a lessee. Enhanced disclosures will also be required to give financial statement users the ability to assess the amount, timing and uncertainty of cash flows arising from leases. The guidance will require modified retrospective application at the beginning of our first quarter of fiscal 2020, with optional practical expedients, but permits adoption in an earlier period. We are currently evaluating the impact this guidance will have on our consolidated financial statements. We expect this adoption will result in a material increase in the assets and liabilities on our consolidated balance sheets but will likely have an insignificant impact on our consolidated statements of earnings. In preparation for the adoption of the guidance, we are in the process of implementing controls and key system changes to enable the preparation of financial information. In May 2014, the FASB issued guidance outlining a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers that supersedes most current revenue recognition guidance. This guidance requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. We are currently evaluating the overall impact this guidance will have on our consolidated financial statements, as well as the expected method of adoption. Based on our continued assessment, which may identify other accounting impacts, we have determined the adoption will change the timing of recognition and classification of our stored value card breakage income, which is currently recognized using the remote method and recorded in interest income and other, net. The new guidance will require application of the proportional method and classification within total net revenues on our consolidated statements of earnings. Additionally, the new guidance requires enhanced disclosures, including revenue recognition policies to identify performance obligations to customers and significant judgments in measurement and recognition. We will adopt this guidance in the first quarter of fiscal 2019.

Summary of Significant Accounting Policies

Financial Statement Preparation

The unaudited condensed consolidated financial statements as of April 1, 2018, and for the quarter and two quarters ended April 1, 2018 and April 2, 2017, have been prepared by Starbucks Corporation under the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, the financial information for the quarter and two quarters ended April 1, 2018 and April 2, 2017 reflects all adjustments and accruals, which are of a normal recurring nature, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods. In this Quarterly Report on Form 10-Q (“10-Q”), Starbucks Corporation is referred to as “Starbucks,” the “Company,” “we,” “us” or “our.”

The financial information as of October 1, 2017 is derived from our audited consolidated financial statements and notes for the fiscal year ended October 1, 2017 (“fiscal 2017”) included in Item 8 in the Fiscal 2017 Annual Report on Form 10-K (the “10-K”). The information included in this 10-Q should be read in conjunction with the footnotes and management’s discussion and analysis of the consolidated financial statements in the 10-K.

The results of operations for the quarter and two quarters ended April 1, 2018 are not necessarily indicative of the results of operations that may be achieved for the entire fiscal year ending September 30, 2018 (“fiscal 2018”).

Recent Accounting Pronouncements

In February 2018, the Financial Accounting Standards Board (“FASB”) issued guidance on the reclassification of certain tax effects from accumulated other comprehensive income (“AOCI”). The guidance permits entities to reclassify the stranded tax effects resulting from the Tax Cuts and Jobs Act (the “Tax Act”) from AOCI to retained earnings. The guidance will be effective at the beginning of our first quarter of fiscal year 2020 but permits adoption in an earlier period. The guidance may be applied in the period of adoption or retrospectively to each period in which the effect of the change related to the Tax Act was recognized. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption.

In August 2017, the FASB amended its guidance on the financial reporting of hedging relationships. The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness, expands permissible cash flow hedges on contractually specified components, and simplifies hedge documentation and effectiveness assessment. The guidance will be effective at the beginning of our first quarter of fiscal year 2020 and will require a modified retrospective approach on existing cash flow and net investment hedges. The presentation and disclosure requirements will be applied prospectively. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption.

In October 2016, the FASB issued guidance on the accounting for income tax effects of intercompany sales or transfers of assets other than inventory. The guidance requires entities to recognize the income tax impact of an intra-entity sale or transfer of an asset other than inventory when the sale or transfer occurs, rather than when the asset has been sold to an outside party. The guidance will require a modified retrospective application with a cumulative catch-up adjustment to opening retained earnings at the beginning of our first quarter of fiscal 2019 but permits adoption in an earlier period. We are currently evaluating the impact this guidance will have on our consolidated financial statements and the timing of adoption.

In March 2016, the FASB issued guidance related to stock-based compensation, which changes the accounting and classification of excess tax benefits and minimum tax withholdings on share-based awards. This guidance requires that excess tax benefits and tax deficiencies related to stock-based compensation be prospectively reflected as income tax expense in our consolidated statement of earnings instead of additional paid-in capital on our consolidated balance sheet. Additionally, within our consolidated statement of cash flows, this guidance requires excess tax benefits to be presented as an operating activity, rather than a financing activity, in the same manner as other cash flows related to income taxes. We adopted this guidance in the first quarter of fiscal 2018. The primary impact of the adoption was the recognition of excess tax benefits that reduced income tax expenses by $16.2 million and $44.4 million for the quarter and two quarters ended April 1, 2018, respectively, instead of additional paid-in capital. As a result, net income increased $16.2 million and $44.4 million for the quarter and two quarters ended April 1, 2018, respectively and basic and diluted earnings per share increased $0.01 and $0.03 for the quarter and two quarters ended April 1, 2018, respectively. Excess tax benefits of $52.7 million, for the two quarters ended April 2, 2017, previously reported in financing activities have been reclassified to operating activities in the consolidated statements of cash flows.

In March 2016, the FASB issued guidance for financial liabilities resulting from selling prepaid stored value products that are redeemable at third-party merchants. Under the new guidance, expected breakage amounts associated with these products must be recognized proportionately in earnings as redemption occurs. Our current accounting policy of applying the remote method to all of our stored value cards, including cards redeemable at the third-party licensed locations, will no longer be allowed. We will adopt and implement the provisions of this guidance and the new revenue recognition standard issued by the FASB, as discussed below, in the first quarter of fiscal 2019.

In February 2016, the FASB issued guidance on the recognition and measurement of leases. Under the new guidance, lessees are required to recognize a lease liability, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet for most leases. The guidance retains the current accounting for lessors and does not make significant changes to the recognition, measurement, and presentation of expenses and cash flows by a lessee. Enhanced disclosures will also be required to give financial statement users the ability to assess the amount, timing and uncertainty of cash flows arising from leases. The guidance will require modified retrospective application at the beginning of our first quarter of fiscal 2020, with optional practical expedients, but permits adoption in an earlier period. We are currently evaluating the impact this guidance will have on our consolidated financial statements. We expect this adoption will result in a material increase in the assets and liabilities on our consolidated balance sheets but will likely have an insignificant impact on our consolidated statements of earnings. In preparation for the adoption of the guidance, we are in the process of implementing controls and key system changes to enable the preparation of financial information.

In May 2014, the FASB issued guidance outlining a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers that supersedes most current revenue recognition guidance. This guidance requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. We are currently evaluating the overall impact this guidance will have on our consolidated financial statements, as well as the expected method of adoption. Based on our continued assessment, which may identify other accounting impacts, we have determined the adoption will change the timing of recognition and classification of our stored value card breakage income, which is currently recognized using the remote method and recorded in interest income and other, net. The new guidance will require application of the proportional method and classification within total net revenues on our consolidated statements of earnings. Additionally, the new guidance requires enhanced disclosures, including revenue recognition policies to identify performance obligations to customers and significant judgments in measurement and recognition. We will adopt this guidance in the first quarter of fiscal 2019.