Equity and Share-Based Compensation - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ 84,679		$ 81,627	$ 92,558
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	(1,786)		(3,093)
Deferred gains (losses) on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	74		193
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	280		290
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of deferred taxes	$ (1,432)	$ (1,898)	$ (2,611)	$ (2,170)	$ 674	$ 1,480