Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating Lease Expense	$ 506	$ 482	$ 463
Operating Lease Payments	369	345	327
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	335	221	$ 368
Operating Lease, Right-of-Use Asset	$ 1,270	$ 1,235
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	OTHER NONCURRENT ASSETS	OTHER NONCURRENT ASSETS
Operating lease liabilities	$ 290	$ 295
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities, Current	Accounts Payable and Accrued Liabilities, Current
Noncurrent portion of operating lease liability	$ 1,128	$ 1,083
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	OTHER LONG-TERM LIABILITIES	OTHER LONG-TERM LIABILITIES
Operating Lease, Liability	$ 1,418	$ 1,378
Weighted average remaining operating lease term (in years)	5 years 4 months 24 days	5 years 7 months 6 days
Weighted average discount rate - operating leases (percentage)	4.50%	3.70%
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2024	$ 374
2025	341
2026	272
2027	218
2028	172
Thereafter	274
Undiscounted lease cash flow commitments	1,651
Reconciling impact from discounting	$ (233)