Stockholders' Equity - Stock Options Outstanding (Details) shares in Millions	12 Months Ended
	Jan. 31, 2025 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number Outstanding (in shares) | shares	8
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	3 years 6 months
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 198.89
Options Exercisable, Number of Shares (in shares) | shares	6
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 187.48
$1.34 to $154.14
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum (in dollars per share)	1.34
Range of Exercise Prices, Maximum (in dollars per share)	$ 154.14
Options Outstanding, Number Outstanding (in shares) | shares	2
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	2 years 7 months 6 days
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 128.18
Options Exercisable, Number of Shares (in shares) | shares	2
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 127.85
$157.70 to $167.45
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum (in dollars per share)	157.70
Range of Exercise Prices, Maximum (in dollars per share)	$ 167.45
Options Outstanding, Number Outstanding (in shares) | shares	1
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	2 years 4 months 24 days
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 162.50
Options Exercisable, Number of Shares (in shares) | shares	1
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 162.27
$171.43 to $215.17
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum (in dollars per share)	171.43
Range of Exercise Prices, Maximum (in dollars per share)	$ 215.17
Options Outstanding, Number Outstanding (in shares) | shares	2
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	3 years 4 months 24 days
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 208.80
Options Exercisable, Number of Shares (in shares) | shares	1
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 211.81
$218.21
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum (in dollars per share)	$ 218.21
Options Outstanding, Number Outstanding (in shares) | shares	2
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	4 years 1 month 6 days
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 218.21
Options Exercisable, Number of Shares (in shares) | shares	1
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 218.21
$218.63 to $342.02
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Minimum (in dollars per share)	218.63
Range of Exercise Prices, Maximum (in dollars per share)	$ 342.02
Options Outstanding, Number Outstanding (in shares) | shares	1
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	4 years 7 months 6 days
Options Outstanding , Weighted-Average Exercise Price (in dollars per share)	$ 267.30
Options Exercisable, Number of Shares (in shares) | shares	1
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 238.64