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Stockholders' Equity - Narrative (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended			9 Months Ended
	Jan. 30, 2026	Sep. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Jan. 27, 2026	Dec. 31, 2025	Jan. 24, 2025	May 31, 2023
Share Repurchase Program [Line Items]
Shares of common stock, authorized (in shares)		3,000,000			3,000,000			3,000,000
Common stock, outstanding (in shares)		1,037,917			1,037,917			1,047,278
Common stock and treasury stock issued under employee stock plans (in shares)					10,800	9,700
Stock repurchase program, authorized amount							$ 5,000		$ 3,000	$ 1,500
Treasury stock, value, acquired, cost method		$ (1)		$ 584	$ 2,232	$ 1,243
Stock repurchase program, remaining authorized amount		$ 4,200			$ 4,200
ASR agreement
Share Repurchase Program [Line Items]
Common stock repurchased (in shares)			18,500
Treasury stock acquired, average cost per share (in dollars per share)			$ 107.97
Treasury stock, value, acquired, cost method	$ 2,000
Open Market Transaction
Share Repurchase Program [Line Items]
Common stock repurchased (in shares)		0		3,200	1,600	6,700
Treasury stock, value, acquired, cost method				$ 584	$ 225	$ 1,243