Employee service share based compensation cash received from employee stock ownership plan.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Award Expiration Period

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award stock issued in period weighted average grant date fair value.

+ References

No definition available.

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- Definition

Tax benefits realized from exercise of stock options.

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

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- Definition

Number of shares issued pursuant to the terms of a deferred compensation arrangement.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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

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

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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Stock-Based Compensation Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 66,000,000	$ 61,000,000	$ 65,000,000
Recognized income tax benefits related to stock-based compensation	$ 24,000,000	$ 35,000,000	$ 31,000,000
Shares under equity incentive compensation plan for future grant	2,833,428	3,278,036
Stock Options Outstanding, Granted	116,852
Directors Stock Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	6,271	7,505
Shares issued in connection with deferred compensation plans	269,373
Deferred Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	18,292	19,633
Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued	58,167	66,504	97,880
Common stock authorized for issuance	2,500,000
Cash received from exercise of stock options	$ 9,987,000	$ 9,730,000	$ 9,528,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	3 years	3 years	4 years
Unrecognized compensation cost expected to be recognized over a weighted-average period (in years)	1 year
Unrecognized compensation cost related to non-vested awards	$ 5,000,000
Shares issued	0	181,939	218,341
Restricted Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value		$ 29,557,000	$ 24,085,000
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested awards	$ 18,000,000
Shares issued	348,512	235,983	348,297
Weighted-average grant date fair value	$ 66,050,000	$ 38,364,000	$ 38,795,000
Stock Option Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	4 years
Stock options exercisable period, maximum	10 years 1 day
Cash realized from exercise of stock options	$ 60,000,000	$ 72,000,000	172,000,000
Tax benefits realized from exercise of stock options	3,000,000	10,000,000	15,000,000
Intrinsic value of stock options exercised	$ 16,000,000	$ 31,000,000	$ 42,000,000