Borrowings - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Jul. 26, 2025	Feb. 28, 2025	Jul. 27, 2024
Debt Instrument [Line Items]
Amount		$ 5,000
Other debt	$ 3		$ 3
Total	24,753		20,253
Unaccreted discount/issuance costs	(142)		(133)
Hedge accounting fair value adjustments	0		(11)
Total	24,611		20,109
Current portion of long-term debt	1,750		488
Long-term debt	$ 22,861		19,621
Fixed-Rate Notes,3.50%, Due June 15, 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	3.50%
Amount	$ 0		$ 500
Effective Rate	0.00%		6.66%
Fixed-Rate Notes 4.90%, Due February 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	4.90%
Amount	$ 1,000		$ 1,000
Effective Rate	5.00%		5.00%
Fixed-Rate Notes,2.95%, Due February 28, 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	2.95%
Amount	$ 750		$ 750
Effective Rate	3.01%		3.01%
Fixed Rate Notes, 2.50%, Due September 20, 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	2.50%
Amount	$ 1,500		$ 1,500
Effective Rate	2.55%		2.55%
Fixed Rate Notes 4.80%, Due February 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	4.80%
Amount	$ 2,000		$ 2,000
Effective Rate	4.90%		4.90%
Fixed Rate Notes 4.55%, Due February 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	4.55%
Amount	$ 1,000		$ 0
Effective Rate	4.61%		0.00%
Fixed Rate Notes 4.85%, Due February 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	4.85%
Amount	$ 2,500		$ 2,500
Effective Rate	4.91%		4.91%
Fixed Rate Notes 4.75%, Due February 2030
Debt Instrument [Line Items]
Interest rate, stated percentage	4.75%
Amount	$ 1,000		$ 0
Effective Rate	4.73%		0.00%
Fixed Rate Notes 4.95%, Due February 2031
Debt Instrument [Line Items]
Interest rate, stated percentage	4.95%
Amount	$ 2,500		$ 2,500
Effective Rate	5.04%		5.04%
Fixed Rate Notes 4.95%, Due February 2032
Debt Instrument [Line Items]
Interest rate, stated percentage	4.95%
Amount	$ 1,000		$ 0
Effective Rate	4.94%		0.00%
Fixed Rate Notes 5.05%, Due February 2034
Debt Instrument [Line Items]
Interest rate, stated percentage	5.05%
Amount	$ 2,500		$ 2,500
Effective Rate	4.97%		4.97%
Fixed Rate Notes 5.10%, Due February 2035
Debt Instrument [Line Items]
Interest rate, stated percentage	5.10%
Amount	$ 1,250		$ 0
Effective Rate	5.11%		0.00%
Fixed-Rate Notes, 5.90%, Due February 15, 2039
Debt Instrument [Line Items]
Interest rate, stated percentage	5.90%
Amount	$ 2,000		$ 2,000
Effective Rate	6.11%		6.11%
Fixed-Rate Notes, 5.50%, Due January 15, 2040
Debt Instrument [Line Items]
Interest rate, stated percentage	5.50%
Amount	$ 2,000		$ 2,000
Effective Rate	5.67%		5.67%
Fixed-Rate Notes 5.30%, Due February 2054
Debt Instrument [Line Items]
Interest rate, stated percentage	5.30%
Amount	$ 2,000		$ 2,000
Effective Rate	5.28%		5.28%
Fixed-Rate Notes 5.50%, Due February 2055
Debt Instrument [Line Items]
Interest rate, stated percentage	5.50%
Amount	$ 750		$ 0
Effective Rate	5.49%		0.00%
Fixed-Rate Notes 5.35%, Due February 2064
Debt Instrument [Line Items]
Interest rate, stated percentage	5.35%
Amount	$ 1,000		$ 1,000
Effective Rate	5.42%		5.42%
Other debt
Debt Instrument [Line Items]
Effective Rate	1.13%		1.13%