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Equity-Based Compensation - Stock Options (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation
Exercisable shares, end of year	1,762,000
Exercisable, Weighted Average Per Share Exercise Price	$ 83.34
Exercise of common stock options	$ 44	$ 66	$ 63
Stock Options [Member]
Share-based Compensation
Term of awards	10 years
Outstanding shares, beginning of year	3,206,000
Granted, shares	477,000
Exercised, shares	(675,000)	(962,000)	(1,039,000)
Forfeited or expired, shares	(85,000)
Outstanding shares, end of year	2,923,000	3,206,000
Exercisable shares, end of year	1,762,000
Outstanding, Weighted Average Per Share Fair Value, beginning of year	$ 92.53
Granted, Weighted Average Per Share Fair Value	145.67
Exercised, Weighted Average Per Share Fair Value	88.54
Forfeited or expired, Weighted Average Per Share Fair Value	124.31
Outstanding, Weighted Average Per Share Fair Value, end of year	101.22	$ 92.53
Exercisable, Weighted Average Per Share Exercise Price	$ 83.34
Weighted average remaining contractual term of stock options outstanding	6 years 2 months 12 days
Aggregate intrinsic value of stock options outstanding based on the market value of company's common stock	$ 163
Aggregate intrinsic value of stock options exercisable based on the market value of company's common stock	130
Exercise of common stock options	44	$ 66	$ 63
Aggregate intrinsic value of stock options exercised	$ 51	$ 66	$ 58
Stock Options [Member] | 10b5-1 Plan [Member]
Share-based Compensation
Exercised, shares	(141,000)
Equity compensation tax payments (in shares)	112,000
Stock Options [Member] | First Anniversary [Member]
Share-based Compensation
Vesting (as a percent)	25.00%
Stock Options [Member] | Second Anniversary [Member]
Share-based Compensation
Vesting (as a percent)	25.00%
Stock Options [Member] | Third Anniversary [Member]
Share-based Compensation
Vesting (as a percent)	50.00%

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