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Debt - Additional Information (Details) - USD ($)	1 Months Ended	6 Months Ended
Debt - Additional Information (Details) - USD ($)	May 31, 2021	Jul. 04, 2021	Jun. 28, 2020
Debt Instrument [Line Items]
Repayments of fixed-rate and floating-rate notes	$ 2,500,000,000
Repayment of fixed-rate notes		$ 2,000,000,000	$ 2,000,000,000
Credit facility, maximum borrowing capacity		5,000,000,000
Commercial paper
Debt Instrument [Line Items]
Commercial paper outstanding		$ 2,000,000,000
Weighted average interest rate on commercial paper		0.252%
Credit Facility \| 364-day Facility Expiring March 2022
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 2,000,000,000
Debt term		364 days
Fixed-rate Notes
Debt Instrument [Line Items]
Debt issued	1,500,000,000
Fixed-rate Notes \| Fixed Rate Notes Due May 2021
Debt Instrument [Line Items]
Repayment of fixed-rate notes	$ 500,000,000
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