Retirement Benefit Plans - Fair Value Measurement (Details) - Pension benefits - USD ($) $ in Millions	12 Months Ended
	Apr. 29, 2022	Apr. 30, 2021	Apr. 24, 2020
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	$ 3,559	$ 3,660	$ 2,982
U.S. Pension Benefits | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	197	331
U.S. Pension Benefits | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,011	860
U.S. Pension Benefits | Level 3 | Partnership units
Reconciliation of Retirement Benefit Plan Assets Measured at Fair Value Using Significant Unobservable Inputs
Beginning balance	860	625
Total realized gains, net	28	8
Total unrealized gains, net	72	89
Purchases and sales, net	51	139
Ending balance	1,011	860
U.S. Pension Benefits | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	2,350	2,470
U.S. Pension Benefits | Short-term investments
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	73	232
U.S. Pension Benefits | Short-term investments | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	73	232
U.S. Pension Benefits | Short-term investments | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Short-term investments | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Short-term investments | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Mutual funds
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	125	99
U.S. Pension Benefits | Mutual funds | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	125	99
U.S. Pension Benefits | Mutual funds | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Mutual funds | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Mutual funds | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Equity commingled trusts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,281	1,420
U.S. Pension Benefits | Equity commingled trusts | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Equity commingled trusts | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Equity commingled trusts | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Equity commingled trusts | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,281	1,420
U.S. Pension Benefits | Fixed income commingled trusts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,069	1,050
U.S. Pension Benefits | Fixed income commingled trusts | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Fixed income commingled trusts | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Fixed income commingled trusts | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Fixed income commingled trusts | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,069	1,050
U.S. Pension Benefits | Partnership units
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,011	860
U.S. Pension Benefits | Partnership units | Level 1
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Partnership units | Level 2
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	0	0
U.S. Pension Benefits | Partnership units | Level 3
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,011	860
U.S. Pension Benefits | 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	1,732	1,900	$ 1,404
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	43	49
Non-U.S. Pension Benefits | Investments measured at net asset value
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,689	1,850
Non-U.S. Pension Benefits | Registered investment companies
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	1,689	1,850
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	1,689	1,850
Non-U.S. Pension Benefits | Insurance contracts
Defined Benefit Plan Disclosure [Line items]
Fair value of plan assets	43	49
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	$ 43	$ 49