Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Net income	$ 10,992	$ 11,339	$ 8,317
Weighted-average shares outstanding - basic (in shares)	1,127,984,348	1,169,195,373	1,185,121,562
Effect of dilutive securities:
Outstanding stock options, unvested stock awards and SoftBank contingent consideration (in shares)	3,091,903	4,018,525	15,164,702
Weighted-average shares outstanding - diluted (in shares)	1,131,076,251	1,173,213,898	1,200,286,264
Earnings per share - basic (in USD per share)	$ 9.75	$ 9.70	$ 7.02
Earnings per share - diluted (in USD per share)	$ 9.72	$ 9.66	$ 6.93
Outstanding stock options and unvested stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	77,805	25,652	148,537
Ka’ena Acquisition earnout
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0	750,162	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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