Amounts in Paragraphs - Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Summary of Significant Accounting Policies (Amounts in paragraphs)
Research and development expenses	$ 1,100	$ 1,100	$ 1,200
Research and Development as a Percent of Sales	2.60%	2.70%	3.00%
Inventory for Long-term Contracts or Programs, General and Administrative Costs Included in Inventory	$ 89	$ 100
Cash surrender value of life insurance	$ 447	416
Stock plans, vesting period	3 years
Capital Expenditures Incurred but Not yet Paid	$ 280	$ 242	$ 75