Long-Term Debt and Short-Term Borrowings - Post-Swap Borrowing, Long-Term Debt, Including Current Portion (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt instrument [Line Items]
Carrying Value	$ 14,240	$ 15,939
Effective Interest Rate
Fixed-rate debt
Debt instrument [Line Items]
Carrying Value	$ 13,027	$ 14,738
Effective Interest Rate	3.09%	2.93%
Floating-rate debt
Debt instrument [Line Items]
Carrying Value	$ 1,213	$ 1,201
Effective Interest Rate	6.88%	5.70%