v3.26.1
Investments - Available-for-Sale Investments With Gross Unrealized Losses (Details) - USD ($)
$ in Millions
Apr. 25, 2026
Jul. 26, 2025
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value $ 2,507 $ 1,517
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses (11) (6)
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 1,184 2,402
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses (14) (75)
TOTAL, Fair Value 3,691 3,919
TOTAL, Gross Unrealized Losses (25) (81)
U.S. government securities    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 1,004 1,076
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses (5) (6)
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 185 302
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses (1) (6)
TOTAL, Fair Value 1,189 1,378
TOTAL, Gross Unrealized Losses (6) (12)
U.S. government agency securities    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 7 8
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 0 21
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses 0 0
TOTAL, Fair Value 7 29
TOTAL, Gross Unrealized Losses 0 0
Non-U.S. government and agency securities    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 263 292
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses 0 0
TOTAL, Fair Value 263 292
TOTAL, Gross Unrealized Losses 0 0
Corporate debt securities    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 1,073 106
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses (6) 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 926 1,800
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses (5) (35)
TOTAL, Fair Value 1,999 1,906
TOTAL, Gross Unrealized Losses (11) (35)
Mortgage- and asset-backed securities    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 86 5
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 73 279
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses (8) (34)
TOTAL, Fair Value 159 284
TOTAL, Gross Unrealized Losses (8) (34)
Commercial paper    
Debt Securities, Available-for-sale [Line Items]    
UNREALIZED LOSSES LESS THAN 12 MONTHS, Fair Value 74 30
UNREALIZED LOSSES LESS THAN 12 MONTHS, Gross Unrealized Losses 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Fair Value 0 0
UNREALIZED LOSSES 12 MONTHS OR GREATER, Gross Unrealized Losses 0 0
TOTAL, Fair Value 74 30
TOTAL, Gross Unrealized Losses $ 0 $ 0