v3.26.1
Accumulated Other Comprehensive Income (Loss) - AOCI Components (Details) - USD ($)
$ in Millions
 12 Months Ended
Jul. 25, 2026
Jul. 26, 2025
Jul. 27, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance, beginning of period $ 46,843 $ 45,457 $ 44,353
Other comprehensive income (loss) before reclassifications 45 485 206
(Gains) losses reclassified out of AOCI (26) 53 16
Tax benefit (expense) (21) (62) (77)
Balance, end of period 50,285 46,843 45,457
Net Unrealized Gains (Losses) on Available-for-Sale Investments      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance, beginning of period (57) (241) (440)
Other comprehensive income (loss) before reclassifications 12 152 193
(Gains) losses reclassified out of AOCI 14 100 67
Tax benefit (expense) 0 (68) (61)
Balance, end of period (31) (57) (241)
Net Unrealized Gains (Losses) Cash Flow Hedging Instruments      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance, beginning of period 65 79 18
Other comprehensive income (loss) before reclassifications 104 29 128
(Gains) losses reclassified out of AOCI (41) (47) (49)
Tax benefit (expense) (15) 4 (18)
Balance, end of period 113 65 79
Cumulative Translation Adjustment and Actuarial Gains (Losses)      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance, beginning of period (962) (1,268) (1,153)
Other comprehensive income (loss) before reclassifications (71) 304 (115)
(Gains) losses reclassified out of AOCI 1 0 (2)
Tax benefit (expense) (6) 2 2
Balance, end of period (1,038) (962) (1,268)
Accumulated Other Comprehensive Loss      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance, beginning of period (954) (1,430) (1,575)
Balance, end of period $ (956) $ (954) $ (1,430)