Debt and Financing Arrangements (Details) - USD ($)		Apr. 30, 2020	Mar. 30, 2020	Apr. 30, 2019
Debt Instrument [Line Items]
Debt instrument face amount		$ 5,400,000,000.0		$ 5,500,000,000.0
Long-term debt	[1]	5,373,300,000		5,484,800,000
Current portion of long-term debt	[1]	0		798,500,000
Long-term debt, less current portion	[1]	5,373,300,000		4,686,300,000
Current Portion Of Long Term Debt [Member]
Debt Instrument [Line Items]
Debt instrument face amount		0		800,000,000.0
Total Long Term Debt Less Current Portion [Member]
Debt Instrument [Line Items]
Debt instrument face amount		$ 5,400,000,000.0		4,700,000,000.0
Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount			$ 800,000,000.0
2.20% Senior Notes due December 6, 2019
Debt Instrument [Line Items]
Interest rate on notes		2.20%
Debt instrument face amount		$ 0		300,000,000.0
Company issued Senior Notes	[1]	$ 0		299,500,000
2.50% Senior Notes due March 15, 2020
Debt Instrument [Line Items]
Interest rate on notes		2.50%
Debt instrument face amount		$ 0		500,000,000.0
Company issued Senior Notes	[1]	$ 0		499,000,000.0
3.50% Senior Notes due October 15, 2021
Debt Instrument [Line Items]
Interest rate on notes		3.50%
Debt instrument face amount		$ 750,000,000.0		750,000,000.0
Company issued Senior Notes	[1]	$ 761,100,000		768,400,000
3.00% Senior Notes due March 15, 2022
Debt Instrument [Line Items]
Interest rate on notes		3.00%
Debt instrument face amount		$ 400,000,000.0		400,000,000.0
Company issued Senior Notes	[1]	$ 398,700,000		398,000,000.0
3.50% Senior Notes due March 15, 2025
Debt Instrument [Line Items]
Interest rate on notes		3.50%
Debt instrument face amount		$ 1,000,000,000.0		1,000,000,000.0
Company issued Senior Notes	[1]	$ 996,000,000.0		995,200,000
3.38% Senior Notes due December 15, 2027
Debt Instrument [Line Items]
Interest rate on notes		3.38%
Debt instrument face amount		$ 500,000,000.0		500,000,000.0
Company issued Senior Notes	[1]	$ 496,700,000		496,200,000
2.38% Senior Notes due March 15, 2030
Debt Instrument [Line Items]
Interest rate on notes		2.38%
Debt instrument face amount		$ 500,000,000.0		0
Company issued Senior Notes		$ 495,200,000		0
4.25% Senior Notes due March 15, 2035
Debt Instrument [Line Items]
Interest rate on notes		4.25%
Debt instrument face amount		$ 650,000,000.0		650,000,000.0
Company issued Senior Notes	[1]	$ 643,900,000		643,500,000
4.38% Senior Notes due March 15, 2045
Debt Instrument [Line Items]
Interest rate on notes		4.38%
Debt instrument face amount		$ 600,000,000.0		600,000,000.0
Company issued Senior Notes	[1]	$ 586,500,000		586,000,000.0
3.55% Senior Notes due March 15, 2050
Debt Instrument [Line Items]
Interest rate on notes		3.55%
Debt instrument face amount		$ 300,000,000.0		0
Company issued Senior Notes		295,700,000		0
Term Loan Credit Agreement due May 14, 2021
Debt Instrument [Line Items]
Debt instrument face amount		700,000,000.0		800,000,000.0
Term loan credit agreement carrying value	[1]	$ 699,500,000		$ 799,000,000.0

[1] Represents the carrying amount included in the Consolidated Balance Sheets, which includes the impact of capitalized debt issuance costs, offering discounts, and terminated interest rate contracts.