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Note 19 - Equity Affiliates - Equity Method Investments (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Investments in equity affiliates $ 103    
Investments in affiliates carried at cost 24    
Investments in affiliates $ 127 $ 126 $ 123
Dongfeng Dana Axle Co., Ltd. (DDAC) [Member]      
Investments in equity affiliates, ownership percentage 50.00%    
Investments in equity affiliates $ 54    
ROC-Spicer, Ltd. [Member]      
Investments in equity affiliates, ownership percentage 50.00%    
Investments in equity affiliates $ 21    
Axles India Limited [Member]      
Investments in equity affiliates, ownership percentage 48.00%    
Investments in equity affiliates $ 17    
Tai Ya Investment (HK) Co., Limited [Member]      
Investments in equity affiliates, ownership percentage 50.00%    
Investments in equity affiliates $ 5    
All Others as a Group [Member]      
Investments in equity affiliates $ 6