Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share [Abstract]
Net income	$ 2,999	$ 2,216	$ 4,342	$ 4,510
Net income (loss) attributable to noncontrolling interests	31	(14)	43	137
Net income (loss)	$ 2,968	$ 2,230	$ 4,299	$ 4,373
Weighted-average shares outstanding	399,886,323	404,615,765	400,281,946	405,139,228
Share-based compensation plans	3,960,707	3,990,902	4,012,933	4,138,555
Weighted-average shares outstanding and assumed conversions	403,847,030	408,606,667	404,294,879	409,277,783
Basic earnings (loss) per share (US$ per share)	$ 7.42	$ 5.51	$ 10.74	$ 10.79
Diluted earnings (loss) per share (US$ per share)	$ 7.35	$ 5.46	$ 10.63	$ 10.68
Potential anti-dilutive share conversions	1,663,091	1,348,531	1,684,365	939,842