Equity and Share-Based Compensation - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ 83,049	$ 83,226	$ 83,033
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	(2,019)	(1,596)
Deferred gains (losses) on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	70	49
Unrecognized gains (losses) on employee benefit obligations and other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	269	293
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ (1,680)	$ (1,253)	$ (1,898)	$ (2,611)