Cash Received per Share in Transaction

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- Definition

Number of Common Shares Required to Settle

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- Definition

Represents the number of active equity-based compensation plans pursuant to which incentive awards are granted to employees, officers, directors and consultants.

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No definition available.

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Share-based Compensation Arrangement By Share-based Payment Award, Award Vesting Rights, Number of Annual Vesting Installments

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No definition available.

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- Definition

Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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No definition available.

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- Definition

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

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

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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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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- Definition

Amount of cash inflow from exercise of option under share-based payment arrangement.

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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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- Definition

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 equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

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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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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No definition available.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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STOCK-BASED COMPENSATION - Narrative (Details)	6 Months Ended		12 Months Ended
STOCK-BASED COMPENSATION - Narrative (Details)	Dec. 31, 2020 USD ($) $ / shares shares	Jun. 30, 2020 $ / shares shares	Dec. 31, 2020 USD ($) installment plan $ / shares shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award
Number of active stock-based compensation plans \| plan			3
Shares available for grant (shares) \| shares	33,600,000		33,600,000
Term of share-based compensation plan			10 years
Unrecognized compensation cost related to all equity awards \| $	$ 142,500,000		$ 142,500,000
Weighted-average period of recognition			2 years 3 months 18 days
Tax benefit recognized related to stock-based compensation \| $			$ 136,600,000	$ 110,400,000	$ 107,200,000
Tax benefit realized from stock option exercises \| $			$ 105,500,000	$ 73,400,000	103,300,000
Intrinsic value of options exercised in period \| $	$ 737,900,000
Cash received per share in transaction (USD per share) \| $ / shares	$ 3.00		$ 3.00
Number of stock options granted during period (shares) \| shares			0	0
Cash received from stock option exercises \| $	$ 155,400,000			$ 0
Number of common shares required to settle (shares) \| shares	500,000		500,000
Stock based compensation capitalized \| $			$ 5,100,000	0	0
Compensation cost from modification of equity awards \| $			$ 21,200,000	$ 7,100,000	$ 3,200,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Number of annual vesting installments \| installment			4
Vesting period			4 years
RSUs and PSUs
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of market-based awards (USD per share) \| $ / shares	$ 104.74
Fair value of equity awards other than options vested during period \| $	$ 14,800,000
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of market-based awards (USD per share) \| $ / shares	$ 106.17	$ 295.37
Number of PSUs vested during the period (shares) \| shares	304,000	78,000
Number of equity awards other than options granted during period (shares) (less than $0.1 million in 2018 and 2016) \| shares	277,000	8,000
PSUs
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of market-based awards (USD per share) \| $ / shares	$ 102.70	$ 0
Number of PSUs vested during the period (shares) \| shares	0	0
Number of equity awards other than options granted during period (shares) (less than $0.1 million in 2018 and 2016) \| shares	195,000	0
Market-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of market-based awards (USD per share) \| $ / shares	$ 0	$ 0
Number of PSUs vested during the period (shares) \| shares	111,000	53,000
Number of equity awards other than options granted during period (shares) (less than $0.1 million in 2018 and 2016) \| shares	0	0
Fair value of equity awards other than options vested during period \| $	$ 2,500,000
Minimum \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period			3 years
Minimum \| Market-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period			2 years
Maximum \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period			4 years
Maximum \| Market-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period			4 years