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Equity and Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense		$ 269	$ 247	$ 859	$ 811
Unrecognized pretax compensation expense on nonvested awards		$ 2,400		$ 2,400
Management Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted (in shares)	1
Weighted-average fair value of stock options granted (in dollars per share)	$ 7.21
Restricted Stock Units (RSUs) | Management Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted share units granted (in shares)	40
Weighted-average fair value of restricted share units granted (in dollars per share)	$ 35.78

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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