Stock Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended
		Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Shares Subject to Option
Beginning balance (in shares)			18,678,120
Options granted (in shares)			2,293,590
Options exercised (in shares)	[1]		(3,966,626)
Options canceled (in shares)			(330,110)
Ending balance (in shares)		16,674,974	16,674,974	18,678,120
Weighted- Average Exercise or Grant Price Per Share
Beginning balance (in dollars per share)			$ 49.96
Options granted (in dollars per share)			73.03
Options exercised (in dollars per share)	[1]		43.20
Options canceled (in dollars per share)			62.48
Ending balance (in dollars per share)		$ 54.50	$ 54.50	$ 49.96
Average Remaining Contractual Term
Average remaining contractual term			5 years	5 years
Aggregate Intrinsic Value
Aggregate intrinsic value		$ 320	$ 320	$ 420
Aggregate intrinsic value options exercised	[1]		118
Cash received from options exercised		74	170
Actual tax benefit realized and recorded in the provision for income taxes for the tax deductions from the option exercises		$ 8	$ 19
Annual grant to eligible employees
Shares Subject to Option
Options granted (in shares)			2,261,810
Weighted- Average Exercise or Grant Price Per Share
Options granted (in dollars per share)			$ 73.13
Additional options issued
Shares Subject to Option
Options granted (in shares)			31,780
Weighted- Average Exercise or Grant Price Per Share
Options granted (in dollars per share)			$ 66.11

[1] Cash received from options exercised was $74 million in the three months and $170 million in the nine months ended September 30, 2024. The actual tax benefit realized and recorded in the provision for income taxes for the tax deductions from the option exercises totaled $8 million in the three months and $19 million in the nine months ended September 30, 2024.