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BASIS OF PRESENTATION (Policies) | 6 Months Ended
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Dec. 29, 2019
Accounting Policies [Abstract] |
Consolidation | The condensed consolidated financial statements include the accounts of Lam Research and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Fiscal Period | The Company’s reporting period is a 52/53-week fiscal year. The Company’s current fiscal year will end June 28, 2020 and includes 52 weeks.
Recent Accounting Pronouncements | Recently Adopted In February 2016, the FASB issued ASU 2016-02, “Leases.” The amendment establishes the principles that lessees and lessors shall apply to report useful information to users of financial statements about the amount, timing, and uncertainty of cash flows arising from a lease. In January 2018 and July 2018 the FASB issued ASU 2018-01 and ASU 2018-11 amending the effects of ASU 2016-02, which in combination with ASU 2016-02 were codified as Accounting Standard Codification topic 842 (“ASC 842”). The Company adopted ASC 842 on the first day of the current fiscal year, July 1, 2019, under the modified-retrospective approach, applying the amendments to prospective reporting periods. Results for reporting periods beginning on or after July 1, 2019 are presented under ASC 842, while prior period amounts are not adjusted and continue to be reported in accordance with the historic accounting under ASC 840. The Company elected the package of practical expedients that allowed the Company not to reassess (i) whether any expired or existing contracts contain leases; (ii) the lease classification for any expired or existing leases; and (iii) initial direct lease costs for existing leases. The Company did not elect to use hindsight in connection with the adoption of ASC 842. The Company adopted ASC 842 by recording operating right-of-use assets of $110.8 million, net of deferred rent liabilities of $3.0 million that were reclassified to operating right-of-use assets, and operating lease liabilities of $113.8 million. The Company also recognized an adjustment of $3.0 million to retained earnings, net of tax; a reduction of $40.4 million to property and equipment, net; and a reduction of $43.8 million to finance leases ($42.3 million of which was previously recognized in long-term debt and finance lease obligations, less current portion and the remaining was previously recognized in current portion of long-term debt and finance lease obligations) related to its de-recognition of its previously recorded build-to-suit arrangements. The adoption of the standard did not materially impact the Company’s Condensed Consolidated Statement of Operations and had no impact on cash flows. Updates Not Yet Effective In June 2016, the FASB released ASU 2016-13, “Financial Instruments – Credit Losses.” The amendment revises the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in more timely recognition of losses on financial instruments, including but not limited to, available for sale debt securities and accounts receivable. The FASB issued a subsequent amendment to the initial guidance in November 2019 within ASU 2019-11. The Company is required to adopt these amendments starting in the first quarter of fiscal year 2021 using a modified-retrospective approach. Early adoption is permitted. The Company is still evaluating the impact of this standard, but does not expect the adoption to have a material impact on its Condensed Consolidated Financial Statements. In November 2018, the FASB issued ASU 2018-18, "Collaborative Arrangements (Topic 808).” The amendment clarifies that certain transactions between participants in a collaborative arrangement should be accounted for under Topic 606 when the counterparty is a customer for a good or service that is a distinct unit of account. The amendment also precludes entities from presenting consideration from transactions with a collaborator that is not a customer together with revenue recognized from contracts with customers. The Company is required to adopt this standard starting in the first quarter of fiscal year 2021. The standard should be applied retrospectively to the period when the Company initially adopted ASC 606. The Company is currently evaluating the impact of adoptions on its Condensed Consolidated Financial Statements. In April 2019, the FASB issued ASU 2019-04,”Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments”, that clarifies and improves areas of guidance related to the recently issued standards on credit losses (ASU 2016-13), hedging (ASU 2017-12), and recognition and measurement of financial instruments (ASU 2016-01). The amendments generally have the same effective dates as their related standards. If already adopted, the amendments of ASU 2016-01 and ASU 2016-13 are effective starting in the first quarter of fiscal year 2021. The amendments of ASU 2017-12 were effective in the first quarter of fiscal year 2020, and did not have a material impact on the Company’s Condensed Consolidated Financial Statements. The Company continues to evaluate the impact of ASU 2016-13 and will consider the amendments of ASU 2019-04 as part of that process.
Inventories | Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value. System shipments to customers in Japan, for which title does not transfer until customer acceptance, are classified as finished goods inventory and carried at cost until title transfers.
Warranties | The Company provides standard warranties on its systems. The liability amount is based on actual historical warranty spending activity by type of system, customer, and geographic region, modified for any known differences such as the impact of system reliability improvements.

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