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Fair Value Measurements (Notes) | 9 Months Ended
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Jun. 27, 2021
Fair Value Measurements [Abstract] |
Fair Value Measurements | Fair Value Measurements The following table presents our fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at June 27, 2021 (in millions):
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |
Cash equivalents | $ | 3,147 |  |  | $ | 3,022 |  |  | $ | — |  |  | $ | 6,169 |
Marketable securities: |  |  |  |  |  |  |
Corporate bonds and notes | — |  |  | 5,035 |  |  | — |  |  | 5,035 |
Equity securities | 303 |  |  | — |  |  | — |  |  | 303 |
Mortgage- and asset-backed securities | — |  |  | 160 |  |  | — |  |  | 160 |
U.S. Treasury securities and government-related securities | — |  |  | 10 |  |  | — |  |  | 10 |
Total marketable securities | 303 |  |  | 5,205 |  |  | — |  |  | 5,508 |
Derivative instruments | — |  |  | 40 |  |  | — |  |  | 40 |
Other investments | 664 |  |  | — |  |  | 9 |  |  | 673 |
Total assets measured at fair value | $ | 4,114 |  |  | $ | 8,267 |  |  | $ | 9 |  |  | $ | 12,390 |
Liabilities |  |  |  |  |  |  |
Derivative instruments | $ | — |  |  | $ | 88 |  |  | $ | — |  |  | $ | 88 |
Other liabilities | 664 |  |  | — |  |  | — |  |  | 664 |
Total liabilities measured at fair value | $ | 664 |  |  | $ | 88 |  |  | $ | — |  |  | $ | 752 |
Activity within Level 3 of the Fair Value Hierarchy. Other investments included in Level 3 at June 27, 2021 were comprised of non-marketable debt instruments. Activity for marketable securities and other investments classified within Level 3 was insignificant during the nine months ended June 27, 2021 (primarily related to sales of auction rate securities and settlements of non-marketable debt instruments) and the nine months ended June 28, 2020 (primarily related to impairments of certain non-marketable debt instruments and purchases of non-marketable debt instruments). Activity for other liabilities classified within Level 3 was insignificant during the nine months ended June 28, 2020 (primarily related to payments of contingent consideration related to a certain business acquisition). Assets Measured and Recorded at Fair Value on a Nonrecurring Basis. We measure certain assets and liabilities at fair value on a nonrecurring basis. These assets and liabilities include equity method and non-marketable equity investments, assets acquired and liabilities assumed in an acquisition or in a nonmonetary exchange, and property, plant and equipment and intangible assets that are written down to fair value when they are held for sale or determined to be impaired. During the nine months ended June 27, 2021 and June 28, 2020, certain of our non-marketable equity investments were written down to their estimated fair values, which was recorded as a component of impairment losses on other investments in investment and other income, net (Note 2), and certain other non-marketable equity investments were remeasured to their estimated fair values based on observable price changes in orderly transactions for identical or similar securities, which is recorded as a component of net gains on other investments in investment and other income, net (Note 2). The estimation of fair value used in the fair value measurements required the use of significant unobservable inputs, and as a result, the fair value measurements were classified as Level 3. Long-term Debt. At June 27, 2021 and September 27, 2020, the aggregate fair value of our outstanding floating- and fixed-rate notes, based on Level 2 inputs, was approximately $17.0 billion and $17.5 billion, respectively.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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