Composition of Certain Financial Statement Items Equity Method and Non-marketable Equity Investments (Details) - USD ($) $ in Millions |
Dec. 30, 2018 |
Sep. 30, 2018 |
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| Investments [Abstract] | ||
| Equity method investments | $ 386 | $ 402 |
| Non-marketable equity investments | 708 | 650 |
| Carrying value of equity method and non-marketable equity investments | $ 1,094 | $ 1,052 |
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of investment in equity method investee and investment in and advance to affiliate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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