Retirement Benefit Plans - Fair Value Measurement (Details) - Pension benefits - USD ($) $ in Millions	12 Months Ended
	Apr. 28, 2023	Apr. 29, 2022	Apr. 30, 2021
UNITED STATES
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	$ 3,398	$ 3,559	$ 3,660
UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	227	197
UNITED STATES | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	992	1,011
UNITED STATES | Level 3 | Partnership units
Reconciliation of Retirement Benefit Plan Assets Measured at Fair Value Using Significant Unobservable Inputs
Beginning balance	1,011	860
Total realized gains, net	67	28
Total unrealized gains, net	151	72
Purchases and sales, net	(238)	51
Ending balance	992	1,011
UNITED STATES | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	2,179	2,350
UNITED STATES | Short-term investments
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	114	73
UNITED STATES | Short-term investments | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	114	73
UNITED STATES | Short-term investments | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Short-term investments | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Short-term investments | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Mutual funds
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	114	125
UNITED STATES | Mutual funds | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	114	125
UNITED STATES | Mutual funds | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Mutual funds | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Mutual funds | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Equity commingled trusts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,211	1,281
UNITED STATES | Equity commingled trusts | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Equity commingled trusts | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Equity commingled trusts | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Equity commingled trusts | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,211	1,281
UNITED STATES | Fixed income commingled trusts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	968	1,069
UNITED STATES | Fixed income commingled trusts | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Fixed income commingled trusts | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Fixed income commingled trusts | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Fixed income commingled trusts | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	968	1,069
UNITED STATES | Partnership units
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	992	1,011
UNITED STATES | Partnership units | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Partnership units | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
UNITED STATES | Partnership units | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	992	1,011
UNITED STATES | Partnership units | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,614	1,732	$ 1,900
Non-U.S. Pension Benefits | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	44	43
Non-U.S. Pension Benefits | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,571	1,689
Non-U.S. Pension Benefits | Registered investment companies
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,571	1,689
Non-U.S. Pension Benefits | Registered investment companies | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Registered investment companies | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Registered investment companies | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Registered investment companies | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,571	1,689
Non-U.S. Pension Benefits | Insurance contracts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	44	43
Non-U.S. Pension Benefits | Insurance contracts | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Insurance contracts | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
Non-U.S. Pension Benefits | Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	44	43
Non-U.S. Pension Benefits | Insurance contracts | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	$ 0	$ 0