Stock-Based Compensation Plans - Additional Information (Detail) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 85,000,000	$ 80,000,000	$ 76,000,000
Recognized income tax benefits related to stock-based compensation	$ 16,000,000	$ 17,000,000	$ 19,000,000
Shares under equity incentive compensation plan for future grant	2,299,502	3,100,665
Stock Options Outstanding, Granted	178,441	187,088	164,244
Weighted average grant date fair value of options granted	$ 5,000,000	$ 5,000,000	$ 5,000,000
Directors’ Stock Compensation Programs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	2,450	3,809
Shares issued in connection with deferred compensation plans	28,646
Deferred Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	13,319	14,304
Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares under equity incentive compensation plan for future grant	2,138,434
Shares issued	95,147	77,170	71,676
Cash received from exercise of stock options	$ 11,000,000	$ 12,000,000	$ 11,000,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	3 years	3 years
Shares issued	0	0	0
Unrecognized compensation cost expected to be recognized over a weighted-average period (in years)	1 year
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued	636,956	480,949	448,487
Weighted-average grant date fair value	$ 84,000,000	$ 81,000,000	$ 74,000,000
Unrecognized compensation cost related to non-vested awards	$ 27,000,000
Stock Option Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Stock options exercisable period, maximum	10 years 1 day
Cash realized from exercise of stock options	$ 305,000	$ 3,000,000	$ 9,000,000

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

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

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

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

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

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

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

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

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

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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 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 shares issued under share-based payment arrangement.

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