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, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 3,059	$ 2,142	$ 8,358	$ 6,303
Weighted-average shares outstanding - basic (in shares)	1,166,961,755	1,171,336,373	1,174,069,336	1,194,497,722
Effect of dilutive securities:
Outstanding stock options, unvested stock awards (in shares)	3,687,806	3,054,099	3,567,809	3,792,419
Weighted-average shares outstanding - diluted (in shares)	1,170,649,561	1,174,390,472	1,177,637,145	1,198,290,141
Earnings per share - basic (in USD per share)	$ 2.62	$ 1.83	$ 7.12	$ 5.28
Earnings per share - diluted (in USD per share)	$ 2.61	$ 1.82	$ 7.10	$ 5.26
Outstanding stock options and unvested stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	8,596	122,700	45,610	133,137
SoftBank contingent consideration
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0	48,751,557	0	48,751,557
Ka’ena Acquisition contingent consideration
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	1,228,008	0	685,713	0

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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