Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 26, 2024	Apr. 28, 2023
Debt Instrument [Line Items]
Finance lease obligations	$ 55	$ 57
Debt discount, net	(55)	(64)
Deferred financing costs	(110)	(124)
Long-term debt	$ 23,932	$ 24,344
Effective Interest Rate	10.17%	9.91%
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Senior Notes | 0.250 percent six-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.25%
Debt term	6 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	0.44%	0.44%
Senior Notes | 2.625 percent three-year 2022 senior notes
Debt Instrument [Line Items]
Stated interest rate	2.625%
Debt term	3 years
Amount	$ 535	$ 549
Effective Interest Rate	2.86%	2.86%
Senior Notes | 0.000 percent five-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.00%
Debt term	5 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	0.23%	0.23%
Senior Notes | 1.125 percent eight-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.125%
Debt term	8 years
Amount	$ 1,606	$ 1,646
Effective Interest Rate	1.25%	1.25%
Senior Notes | 4.250 percent five-year 2023 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.25%
Debt term	5 years
Amount	$ 1,000	$ 1,000
Effective Interest Rate	4.42%	4.42%
Senior Notes | 3.000 percent six-year 2022 senior notes
Debt Instrument [Line Items]
Stated interest rate	3.00%
Debt term	6 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	3.10%	3.09%
Senior Notes | 0.375 percent eight-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.375%
Debt term	8 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	0.51%	0.51%
Senior Notes | 1.625 percent twelve-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.625%
Debt term	12 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.75%	1.75%
Senior Notes | 1.000 percent twelve-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.00%
Debt term	12 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.06%	1.06%
Senior Notes | 3.125 percent nine-year 2022 senior notes
Debt Instrument [Line Items]
Stated interest rate	3.125%
Debt term	9 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	3.25%	3.25%
Senior Notes | 0.750 percent twelve-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.75%
Debt term	12 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	0.81%	0.81%
Senior Notes | 4.500 percent ten-year 2023 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.50%
Debt term	10 years
Amount	$ 1,000	$ 1,000
Effective Interest Rate	4.62%	4.62%
Senior Notes | 3.375 percent twelve-year 2022 senior notes
Debt Instrument [Line Items]
Stated interest rate	3.375%
Debt term	12 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	3.44%	3.44%
Senior Notes | 4.375 percent twenty-year 2015 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.375%
Debt term	20 years
Amount	$ 1,932	$ 1,932
Effective Interest Rate	4.47%	4.47%
Senior Notes | 6.550 percent thirty-year 2007 CIFSA senior notes
Debt Instrument [Line Items]
Stated interest rate	6.55%
Debt term	30 years
Amount	$ 253	$ 253
Effective Interest Rate	4.67%	4.67%
Senior Notes | 2.250 percent twenty-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	2.25%
Debt term	20 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	2.34%	2.34%
Senior Notes | 6.500 percent thirty-year 2009 senior notes
Debt Instrument [Line Items]
Stated interest rate	6.50%
Debt term	30 years
Amount	$ 158	$ 158
Effective Interest Rate	6.56%	6.56%
Senior Notes | 1.500 percent twenty-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.50%
Debt term	20 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.58%	1.58%
Senior Notes | 5.550 percent thirty-year 2010 senior notes
Debt Instrument [Line Items]
Stated interest rate	5.55%
Debt term	30 years
Amount	$ 224	$ 224
Effective Interest Rate	5.58%	5.58%
Senior Notes | 1.375 percent twenty-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.375%
Debt term	20 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.46%	1.46%
Senior Notes | 4.500 percent thirty-year 2012 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.50%
Debt term	30 years
Amount	$ 105	$ 105
Effective Interest Rate	4.54%	4.54%
Senior Notes | 4.000 percent thirty-year 2013 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.00%
Debt term	30 years
Amount	$ 305	$ 305
Effective Interest Rate	4.09%	4.09%
Senior Notes | 4.625 percent thirty-year 2014 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.625%
Debt term	30 years
Amount	$ 127	$ 127
Effective Interest Rate	4.67%	4.67%
Senior Notes | 4.625 percent thirty-year 2015 senior notes
Debt Instrument [Line Items]
Stated interest rate	4.625%
Debt term	30 years
Amount	$ 1,813	$ 1,813
Effective Interest Rate	4.69%	4.69%
Senior Notes | 1.750 percent thirty-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.75%
Debt term	30 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.87%	1.87%
Senior Notes | 1.625 percent thirty-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.625%
Debt term	30 years
Amount	$ 1,070	$ 1,097
Effective Interest Rate	1.75%	1.75%