Compensation Related Costs Share Based Payments Disclosure [Line Items]

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Employee Service Share Based Compensation recognized Compensation Costs On Nonvested Restricted Shares

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Shares remaining available for issuance for the plan.

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Employee Stock Purchase Plan, Maximum Percentage of Compensation to Purchase Shares By Eligible Participants

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Employee Stock Purchase Plan, Minimum Percentage of Common Stock Fair Value Defined to Purchase Shares By Eligible Participants

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Employee Stock Purchase Plan, Number of Exercise Period

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Employee Stock Purchase Plan, Term of Exercise Period

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Employee Stock Purchase Plan, Term of Offering Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility, Market Capitalization

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value of Shares Issued

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Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term

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Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification

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Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Term

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Share-based Compensation Arrangement by Share-based Payment Award, Remaining Shares Estimated To Be Issued

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Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Granted Counted Against Shares Authorized Ratio

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Share-based Compensation Arrangement by Share-based Payment Award, Value of Shares Authorized

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Share-based Compensation Arrangement by Share-based Payment Award, Volume Weighted Average Closing Price, Valuation Period

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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Amount of cost capitalized for award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Amount of cash paid to settle liability for award under share-based payment arrangement.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Number of shares issued under share-based payment arrangement.

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Percentage of vesting of award under share-based payment arrangement.

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Equity Compensation - Narrative (Details) $ / shares in Units, $ in Millions				12 Months Ended
	May 11, 2021 USD ($) trading_day	Mar. 31, 2021 shares	Nov. 23, 2020 USD ($) shares	Jan. 31, 2023 USD ($) trading_day period $ / shares shares	Jan. 31, 2022 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Number of securities remaining available for future issuance under equity compensation plans (in shares)				26,000,000
Settlement of liability-classified restricted common shares \| $				$ 11	$ 3	$ 29
Fair value assumptions, expected volatility, market capitalization \| $				$ 2,000
Shares issued in period (in shares)				13,000
Share-based compensation expense \| $				$ 660	559	399
Number of exercise period \| period				4
Term of exercise period				6 months
Term of offering period				24 months
Spacemaker
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period			3 years
Business acquisition, equity interest issued or issuable, number of shares (in shares)			147,000
Share-based compensation expense \| $			$ 2
Storm UK Holdco Limited
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Business acquisition, equity interest issued or issuable, number of shares (in shares)		9,000
Upchain
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Value of shares authorized \| $	$ 13
Shares issued in period (in shares)				24,000
Value of shares issued \| $				$ 5
Volume Weighted Average Closing price, valuation period \| trading_day	90			90
Remaining shares estimated to be issued (in shares)				39,000
Business acquisition, equity interest issued or issuable, number of shares (in shares)				39,000
Share-based compensation expense \| $					3
Upchain \| Share-based Compensation Award, Tranche One
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)	40.00%
Upchain \| Share-based Compensation Award, Tranche Two
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)	60.00%
Series of Individually Immaterial Business Acquisitions
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares issued in period (in shares)				18,000
Value of shares issued \| $				$ 3
Business acquisition, equity interest issued or issuable, number of shares (in shares)				34,000
Fiscal 2023 Acquisition
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Share based compensation expense, restricted stock units \| $				$ 5
Value of shares authorized \| $				$ 5
Volume Weighted Average Closing price, valuation period \| trading_day				90
Remaining shares estimated to be issued (in shares)				23,000
Share-based compensation expense \| $				$ 2
Fiscal 2023 Acquisition \| Share-based Compensation Award, Tranche One
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)				40.00%
Fiscal 2023 Acquisition \| Share-based Compensation Award, Tranche Two
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)				60.00%
Other Fiscal 2022 Acquisitions
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Value of shares authorized \| $					11
Restricted Stock Units (RSUs)
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Granted (in shares)				3,000,000
Share based compensation expense, restricted stock units \| $				$ 510	$ 425	$ 309
Total compensation cost related to non-vested awards not yet recognized \| $				$ 722
Total compensation cost related to non-vested awards not yet recognized, weighted average period of recognition				1 year 10 months 6 days
Number of awards granted but unreleased				4,000,000
Restricted Stock Units (RSUs) \| Maximum
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				3 years
Restricted Stock Units (RSUs) and Performance Stock Units (PSUs)
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Granted (in dollars per share) \| $ / shares				$ 198.89	$ 288.13	$ 224.20
Fair value of units vested in period \| $				$ 490	$ 620	$ 503
Granted (in shares)				3,742,000
Number of awards granted but unreleased				4,848,000	4,033,000
Performance Stock Unit
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				3 years
Granted (in shares)				239,000
Share based compensation expense, restricted stock units \| $				$ 54	$ 68	31
Total compensation cost related to non-vested awards not yet recognized \| $				$ 8
Total compensation cost related to non-vested awards not yet recognized, weighted average period of recognition				8 months 15 days
Number of awards granted but unreleased				461,000
Performance Stock Unit \| Share-based Compensation Award, Tranche One
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)				33.33%
Performance Stock Unit \| Share-based Compensation Award, Tranche Two
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)				33.33%
Performance Stock Unit \| Share-Based Payment Arrangement, Tranche Three
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Awards vesting percentage (in percentage)				33.33%
Performance Stock Unit \| Management
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				1 year
Granted (in shares)				115,000
Common Stock
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares issued in period (in shares)					8,000
Value of shares issued \| $				$ 3	$ 3
Share-based compensation expense \| $				$ 32	$ 17	2
Common Stock \| Spacemaker
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Value of shares authorized \| $						$ 5
Restricted Stock
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period					2 years
Restricted Stock \| Spacemaker
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period						3 years
Shares issued in period (in shares)						74,000
Restricted Stock \| Storm UK Holdco Limited
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares issued in period (in shares)		9,000			9,000
Restricted Stock \| Series of Individually Immaterial Business Acquisitions
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares issued in period (in shares)					13,000
Restricted Stock \| Fiscal 2023 Acquisition
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				2 years
Shares issued in period (in shares)				40,000
Equity Incentive Plan 2022
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares of common stock reserved for issuance (in shares)				23,000,000
Shares granted counted against shares authorized ratio				2.08
Shares available for grant (in shares)				21,000,000
Equity Incentive Plan 2022 \| Restricted Stock Units (RSUs) \| Minimum
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				1 year
Equity Incentive Plan 2022 \| Restricted Stock Units (RSUs) \| Maximum
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				3 years
Equity Incentive Plan 2022 \| Restricted Stock Units And Restricted Stock Awards
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Grants in period, net of forfeitures (in shares)				2,000,000
BuildingConnected 2012 Plan
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period				4 years
Options outstanding (in shares)				4,000
Share based payment award options expiration term (in years)				10 years
ESPP
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Number of securities remaining available for future issuance under equity compensation plans (in shares)				5,000,000
Percentage of compensation that eligible employees can use to purchase common stock, maximum				15.00%
Percentage of fair market value eligible employees can purchase common stock, minimum				85.00%
Number of exercise period \| period				4
Term of exercise period				6 months
Term of offering period				24 months
Employee service share based compensation recognized compensation costs on nonvested restricted shares \| $				$ 62	$ 37	$ 40
Plan modification term				24 months
Plan modification \| $				$ 21