Debt - Additional Information (Details)	3 Months Ended
Mar. 29, 2020 USD ($)
Debt Instrument [Line Items]
Repayments of fixed-rate and floating-rate notes	$ 2,500,000,000
Percentage of owned subsidiaries guaranteed fixed- and floating-rate notes	100.00%
Credit facility, maximum borrowing capacity	$ 5,000,000,000
Commercial Paper
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,300,000,000
Weighted average interest rate	1.37%
Credit Facility \| 364-day Facility Expiring March 2021
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 2,000,000,000
Debt term	364 days
Loans Payable [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 4,000,000,000
Credit Facility \| Multi-year Facility Expiring March 2023
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	2,000,000,000
Credit Facility \| Multi-year Facility Expiring March 2025
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 1,000,000,000

Percentage Of Owned Subsidiaries Guaranteed Fixed- And Floating-Rate Notes

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: 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(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

Reference 1: 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(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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