Leases - Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
ROU assets	$ 2,924	$ 3,002
Lease liabilities (short-term)	527	620
Lease liabilities (long-term)	$ 2,626	$ 2,597
ROU assets, statement of financial position	Other Assets, Noncurrent	Other Assets, Noncurrent
Lease liabilities (short-term), statement of financial position	Other current liabilities	Other current liabilities
Lease liabilities (long-term), statement of financial position	Other noncurrent liabilities	Other noncurrent liabilities