Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Net income	$ 2,953	$ 2,374
Weighted-average shares outstanding - basic (in shares)	1,140,537,935	1,185,298,497
Effect of dilutive securities:
Outstanding stock options, unvested stock awards and SoftBank contingent consideration (in shares)	4,117,362	3,793,522
Weighted-average shares outstanding - diluted (in shares)	1,144,655,297	1,189,092,019
Earnings per share - basic (in USD per share)	$ 2.59	$ 2.00
Earnings per share - diluted (in USD per share)	$ 2.58	$ 2.00
Ka Ena Corporation
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Contingent shares outstanding during the period (in shares)	0
Outstanding stock options and unvested stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	961,773	6
Ka’ena Acquisition contingent consideration
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	979,153	0

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