XML 78 R63.htm IDEA: XBRL DOCUMENT v3.22.0.1

Employee Incentive Plans (Share Grants And Fair Value) (Details) - USD ($) $ in Millions	12 Months Ended				140 Months Ended	176 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2021
Employee Incentive Plans [Abstract]
Shares granted	1,077,048	1,229,177	[1]	1,374,217	25,643,893
Fair Value - Date of Grant	$ 83	$ 71		$ 65	$ 623	$ 83
Shares Granted IPO to Date						29,324,335
Fair Value - Date of Grant IPO to Date						$ 841
Stock Incentive Plan Granted Shares Adjustment	7,034	7,034
[1] Stock Incentive Plan number of granted restricted stock units related to 2020 was adjusted by 7,034 restricted stock units during the year ended December 31, 2021.

X

- Definition

Fair Value of shares granted under the 2007 Stock Incentive Plan.

+ References

No definition available.

+ Details

Name:	ibkr_FairValueShareBasedCompensationSIPSharesGranted
Namespace Prefix:	ibkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair Value of all shares granted under the 2007 Stock Incentive Plan from the IPO to date.

+ References

No definition available.

+ Details

Name:	ibkr_FairValueShareBasedCompensationSIPSharesGrantedIPOToDate
Namespace Prefix:	ibkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number of shares granted under the 2007 Stock Incentive Plan.

+ References

No definition available.

+ Details

Name:	ibkr_ShareBasedCompensationSharesGranted
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Shares granted under the Stock Incentive Plan from the IPO to date.

+ References

No definition available.

+ Details

Name:	ibkr_ShareBasedCompensationSharesGrantedIPOToDate
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Stock Incentive Plan Granted Shares Adjustment for prior year end

+ References

No definition available.

+ Details

Name:	ibkr_StockIncentivePlanGrantedSharesAdjustment
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration