Acquisitions - Narrative (Details) shares in Thousands				12 Months Ended
	May 11, 2021 USD ($) trading_day	Mar. 31, 2021 USD ($) shares	Nov. 23, 2020 USD ($) shares	Jan. 31, 2023 USD ($) trading_day businessCombination shares	Jan. 31, 2022 USD ($) business_combination shares	Jan. 31, 2021 USD ($) business_combination shares
Business Acquisition [Line Items]
Shares issued in period (in shares) | shares				13
Consideration transferred, equity interests				$ 10,000,000	$ 6,000,000	$ 38,000,000
Share-based compensation expense				660,000,000	$ 559,000,000	$ 399,000,000
Goodwill deductible for tax purposes				$ 0
Restricted Stock
Business Acquisition [Line Items]
Vesting period					2 years
Fiscal 2023 Acquisition
Business Acquisition [Line Items]
Number of businesses combinations | businessCombination				2
Consideration transferred				$ 114,000,000
Payments to acquire businesses				96,000,000
Consideration transferred, equity interests				10,000,000
Business combination, consideration transferred, other				97,000,000
Share based compensation expense, liability-classified awards				5,000,000
Share-based compensation expense				$ 2,000,000
Volume Weighted Average Closing price, valuation period | trading_day				90
Value of shares authorized				$ 5,000,000
Fiscal 2023 Acquisition | Share-based Compensation Award, Tranche One
Business Acquisition [Line Items]
Awards vesting percentage (in percentage)				40.00%
Fiscal 2023 Acquisition | Share-based Compensation Award, Tranche Two
Business Acquisition [Line Items]
Awards vesting percentage (in percentage)				60.00%
Fiscal 2023 Acquisition | Prepaid expenses and other current assets
Business Acquisition [Line Items]
Share based compensation expense, liability-classified awards				$ 10,000,000
Fiscal 2023 Acquisition | Certain Employees of Acquiree
Business Acquisition [Line Items]
Consideration transferred, equity interests				$ 5,000,000
Fiscal 2023 Acquisition | Restricted Stock
Business Acquisition [Line Items]
Shares issued in period (in shares) | shares				40
Vesting period				2 years
Upchain
Business Acquisition [Line Items]
Consideration transferred	$ 140,000,000
Payments to acquire businesses	127,000,000
Shares issued in period (in shares) | shares				24
Consideration transferred, equity interests	13,000,000
Business combination, consideration transferred, other	124,000,000
Business combination, contingent consideration, liability	$ 13,000,000
Share-based compensation expense					$ 3,000,000
Volume Weighted Average Closing price, valuation period | trading_day	90			90
Goodwill deductible for tax purposes	$ 101,000,000
Business acquisition, percentage of voting interests acquired	100.00%
Value of shares authorized	$ 13,000,000
Value of shares issued				$ 5,000,000
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares				39
Upchain | Share-based Compensation Award, Tranche One
Business Acquisition [Line Items]
Awards vesting percentage (in percentage)	40.00%
Upchain | Share-based Compensation Award, Tranche Two
Business Acquisition [Line Items]
Awards vesting percentage (in percentage)	60.00%
Storm UK Holdco Limited
Business Acquisition [Line Items]
Consideration transferred		$ 1,038,000,000
Payments to acquire businesses		1,035,000,000
Consideration transferred, equity interests		3,000,000
Business combination, consideration transferred, other		1,035,000,000
Goodwill deductible for tax purposes		$ 273,000,000
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares		9
Business combination, contingent consideration, asset		$ 3,000,000
Percentage of restricted common stock released		50.00%
Storm UK Holdco Limited | Restricted Stock
Business Acquisition [Line Items]
Shares issued in period (in shares) | shares		9			9
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Number of businesses combinations | business_combination					4	2
Consideration transferred					$ 113,000,000	$ 45,000,000
Payments to acquire businesses					99,000,000
Shares issued in period (in shares) | shares				18
Consideration transferred, equity interests					11,000,000
Business combination, consideration transferred, other					99,000,000
Goodwill deductible for tax purposes					$ 72,000,000	$ 195,000,000
Value of shares issued				$ 3,000,000
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares				34
Series of Individually Immaterial Business Acquisitions | Restricted Stock
Business Acquisition [Line Items]
Shares issued in period (in shares) | shares					13
Consideration transferred, equity interests					$ 3,000,000
Spacemaker
Business Acquisition [Line Items]
Consideration transferred			$ 252,000,000
Payments to acquire businesses			214,000,000
Consideration transferred, equity interests			38,000,000
Business combination, consideration transferred, other			231,000,000
Share-based compensation expense			$ 2,000,000
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares			147
Business combination, contingent consideration, asset			$ 19,000,000
Vesting period			3 years
Spacemaker | Restricted Stock
Business Acquisition [Line Items]
Shares issued in period (in shares) | shares						74
Vesting period						3 years