Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 29, 2022	Apr. 30, 2021
Debt Instrument [Line Items]
Finance lease obligations	$ 56	$ 62
Debt discount, net	(52)	(75)
Deferred financing costs	(109)	(125)
Long-term debt	$ 20,372	$ 26,378
Effective Interest Rate	9.15%	9.29%
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Senior Notes | 0.000 percent three-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.00%
Debt term	3 years
Amount	$ 0	$ 907
Effective Interest Rate	0.00%	0.08%
Senior Notes | 0.375 percent four-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.375%
Debt term	4 years
Amount	$ 0	$ 1,813
Effective Interest Rate	0.00%	0.55%
Senior Notes | 0.000 percent two-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.00%
Debt term	2 years
Amount	$ 0	$ 1,511
Effective Interest Rate	0.00%	0.12%
Senior Notes | 3.500 percent ten-year 2015 senior notes
Debt Instrument [Line Items]
Stated interest rate	3.50%
Debt term	10 years
Amount	$ 1,890	$ 1,890
Effective Interest Rate	3.74%	3.74%
Senior Notes | 0.250 percent six-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.25%
Debt term	6 years
Amount	$ 1,064	$ 1,209
Effective Interest Rate	0.45%	0.43%
Senior Notes | 0.000 percent five-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.00%
Debt term	5 years
Amount	$ 1,064	$ 1,209
Effective Interest Rate	0.25%	0.22%
Senior Notes | 1.125 percent eight-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.125%
Debt term	8 years
Amount	$ 1,596	$ 1,813
Effective Interest Rate	1.26%	1.24%
Senior Notes | 3.350 percent ten-year 2017 senior notes
Debt Instrument [Line Items]
Stated interest rate	3.35%
Debt term	10 years
Amount	$ 368	$ 368
Effective Interest Rate	3.53%	3.53%
Senior Notes | 0.375 percent eight-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.375%
Debt term	8 years
Amount	$ 1,064	$ 1,209
Effective Interest Rate	0.52%	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	$ 1,064	$ 1,209
Effective Interest Rate	1.75%	1.74%
Senior Notes | 1.000 percent twelve-year 2019 senior notes
Debt Instrument [Line Items]
Stated interest rate	1.00%
Debt term	12 years
Amount	$ 1,064	$ 1,209
Effective Interest Rate	1.06%	1.05%
Senior Notes | 0.750 percent twelve-year 2020 senior notes
Debt Instrument [Line Items]
Stated interest rate	0.75%
Debt term	12 years
Amount	$ 1,064	$ 1,209
Effective Interest Rate	0.81%	0.81%
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	$ 1,064	$ 1,209
Effective Interest Rate	2.35%	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	$ 1,064	$ 1,209
Effective Interest Rate	1.59%	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	$ 1,064	$ 1,209
Effective Interest Rate	1.47%	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	$ 1,064	$ 1,209
Effective Interest Rate	1.88%	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	$ 1,064	$ 1,209
Effective Interest Rate	1.76%	1.75%