Stockholders' Equity - Stock Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Apr. 26, 2025	Jan. 25, 2025	Oct. 26, 2024	Jul. 27, 2024	Apr. 27, 2024	Jan. 27, 2024	Oct. 28, 2023	Apr. 26, 2025	Apr. 27, 2024
Stockholders' Equity Note [Abstract]
Shares (in shares)	25	21	40	43	26	25	23
Weighted-Average Price per Share (in dollars per share)	$ 59.78	$ 58.58	$ 49.56	$ 46.80	$ 49.22	$ 49.54	$ 54.53
Amount	$ 1,504	$ 1,236	$ 2,003	$ 2,002	$ 1,256	$ 1,254	$ 1,252	$ 4,743	$ 3,762

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration