Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Net income	$ 2,714	$ 3,059	$ 8,889	$ 8,358
Weighted-average shares outstanding - basic (in shares)	1,123,754,096	1,166,961,755	1,133,743,367	1,174,069,336
Effect of dilutive securities:
Outstanding stock options and unvested stock awards (in shares)	2,873,612	3,687,806	3,177,154	3,567,809
Weighted-average shares outstanding - diluted (in shares)	1,126,627,708	1,170,649,561	1,136,920,521	1,177,637,145
Earnings per share - basic (in USD per share)	$ 2.42	$ 2.62	$ 7.84	$ 7.12
Earnings per share - diluted (in USD per share)	$ 2.41	$ 2.61	$ 7.82	$ 7.10
Outstanding stock options and unvested stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	2,630,711	8,596	1,588,901	45,610
Ka’ena Acquisition earnout
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0	1,228,008	0	685,713

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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