Amounts in Paragraphs - Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Summary of Significant Accounting Policies (Amounts in paragraphs)
Research and development expenses	$ 1,100	$ 1,200	$ 1,200
Research and Development as a Percent of Sales	2.70%	3.00%	3.30%
Inventory for Long-term Contracts or Programs, General and Administrative Costs Included in Inventory	$ 100	$ 65
Cash surrender value of life insurance	$ 416	399
Stock plans, vesting period	3 years
Revenue from Sale of Equipment to a Customer				$ 444
Proceeds from sale of equipment to a customer	$ 0	0	$ 155
Capital Expenditures Incurred but Not yet Paid	$ 242	$ 75	$ 113