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Debt - Schedule of Debt (Details) - USD ($)	Jun. 28, 2019	Jun. 29, 2018	Feb. 28, 2018
Debt Instrument [Line Items]
Debt instrument, face amount	$ 10,694,000,000	$ 11,375,000,000
Issuance costs and debt discounts	(172,000,000)	(203,000,000)
Net carrying value	10,522,000,000	11,172,000,000
Less current portion of long-term debt	(276,000,000)	(179,000,000)
Long-term debt	$ 10,246,000,000	10,993,000,000
0.50% convertible senior notes due 2020
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	0.50%
Debt instrument, face amount	$ 35,000,000	35,000,000
Revolving credit facility maturing 2023
Debt Instrument [Line Items]
Debt instrument, face amount	0	500,000,000
Variable interest rate Term Loan A-1 maturing 2023
Debt Instrument [Line Items]
Debt instrument, face amount	4,834,000,000	4,991,000,000
Variable interest rate U.S. Term Loan B-4 maturing 2023
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,425,000,000	2,449,000,000
1.50% convertible notes due 2024
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	1.50%
4.750% senior unsecured notes due 2026
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	4.75%
Debt instrument, face amount	$ 2,300,000,000	2,300,000,000	$ 2,300,000,000
Convertible Debt | 1.50% convertible notes due 2024
Debt Instrument [Line Items]
Debt instrument, interest rate (percentage)	1.50%
Debt instrument, face amount	$ 1,100,000,000	$ 1,100,000,000
Issuance costs and debt discounts	$ (142,000,000)

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

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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