Capital Stock - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares Directors shares	Dec. 31, 2023 $ / shares shares	Dec. 31, 2022 $ / shares shares	Jan. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Jan. 31, 2023 USD ($)	Jan. 31, 2022 USD ($)	Feb. 28, 2021 USD ($)
Capital Structure [Line Items]
Common stock, shares authorized | shares	1,800,000,000	1,800,000,000
Repurchase of common stock, shares | shares	17,798,000	14,465,000	30,747,000
Repurchase price of common stock, per share | $ / shares	$ 337.74	$ 263.47	$ 227.67
Board of Directors Chairman [Member]
Capital Structure [Line Items]
Share repurchase program authorized amount | $	$ 764				$ 6,000	$ 3,000	$ 8,000	$ 6,000
Subsequent Event [Member] | Board of Directors Chairman [Member]
Capital Structure [Line Items]
Share repurchase program authorized amount | $				$ 10,000
Minimum [Member]
Capital Structure [Line Items]
Number of directors as per the amended and restated by-laws | Directors	3