Sales Of Receivables (Revolving Receivables Sold) (Details) - Revolving Receivables Program - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables sold/cash proceeds received	$ 21,632	$ 8,882	$ 0
Total collections under revolving agreement	20,362	7,382	0
Net cash proceeds received	1,270	1,500	0
Net receivables sold	21,039	8,679	0
Initial sale of receivables	$ 1,270	$ 1,500	$ 0