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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, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation expense		$ 247	$ 238	$ 811	$ 786
Unrecognized pretax compensation expense on nonvested awards		$ 2,300		$ 2,300
Management Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted (in shares)	3
Weighted-average fair value of stock options granted (in dollars per share)	$ 9.49
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)	31
Weighted-average fair value of restricted share units granted (in dollars per share)	$ 42.62

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