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Summary of Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Schedule of Other Costs [Table Text Block] Engineering, research, development, and advertising expenses for the years ended December 31 were as follows (in billions):
 202220232024
Engineering, research, and development$7.8 $8.2 $8.0 
Advertising2.2 2.5 2.8 
Supplier Finance Program
The rollforward of SCF obligations for the years ended December 31 was as follows (in millions):
20232024
Outstanding at the beginning of the year$253 $220 
Invoices received during the year1,778 1,522 
Invoices settled during the year(1,811)(1,570)
Outstanding at the end of the year$220 $172