Capital Stock, Dividends and Common Stock Repurchase Program - Stock (Detail) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2023 $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Capital Stock, Dividends and Common Stock Repurchase Program
Common stock, shares authorized | shares	1,500,000,000	1,500,000,000	1,500,000,000
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common shares outstanding (in shares) | shares	401,500,000	401,500,000	407,900,000	416,100,000
Preferred stock shares authorized | shares	10,000,000	10,000,000
Preferred stock par value per share	$ 0.01	$ 0.01
Preferred stock shares outstanding | shares	0	0
Cash dividends | $		$ 1,136	$ 1,077	$ 970
Cash dividends declared and paid per common share		$ 2.80	$ 2.60	$ 2.30
Quarterly common stock dividend per share	0.70
Expected quarterly common stock dividend per share	$ 0.75