Debt (Summary of long-term debt maturities) (Details) - USD ($) $ in Millions	Mar. 28, 2021	Sep. 27, 2020
Long-term Debt [Line Items]
2021	$ 0.0
2022	1,000.0
2023	1,000.0
2024	1,528.5
2025	1,250.0
Thereafter	9,950.0
Total	$ 14,728.5	$ 16,006.4

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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-Publisher FASB
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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
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