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Debt (Narrative) (Details) - USD ($) $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Nov. 29, 2018 | Dec. 29, 2018 | Sep. 29, 2018
364-Day due November 2019 [Member] [Domain] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt, Gross |  | $ 1,800 |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Maximum borrowing capacity |  | 1,750 |
Amount available for borrowing under credit facility |  | 1,750 |
Standby Letters of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Letters of Credit Outstanding, Amount |  | 0 |
Bilateral Letters Of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Letters of Credit Outstanding, Amount |  | 111 |
Commercial paper |  |  |
Debt Instrument [Line Items] |  |  |
Maximum borrowing capacity |  | 1,000 |
Commercial paper |  | $ 737 | $ 605
Short-term Debt, Weighted Average Interest Rate, at Point in Time |  | 2.94% |
Debt Instrument, Term |  | 15 days |
Term Loan [Member] | 364-Day due November 2019 [Member] [Domain] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt, Gross | $ 1,800 |  | $ 0
Debt Instrument, Basis Spread on Variable Rate | 1.125% |  |

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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