v3.26.1
Finance Receivables and Loans, Net - Schedule of Allowance for Credit Losses on Financing Receivables (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Allowance, beginning balance $ 3,540 $ 3,398 $ 3,490 $ 3,714 $ 3,714
Charge-offs (685) (602) (1,357) (1,347) (2,683)
Recoveries 291 236 546 474  
Net charge-offs (394) (366) (811) (873)  
Provision for credit losses 430 384 897 575  
Other 0 0 0 0  
Allowance, ending balance 3,576 3,416 3,576 3,416 3,490
Consumer          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Charge-offs     (1,305)   (2,681)
Consumer | Consumer automotive          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Allowance, beginning balance 3,250 3,144 3,208 3,170 3,170
Charge-offs (634) (599) (1,305) (1,275) (2,610)
Recoveries 290 233 537 464  
Net charge-offs (344) (366) (768) (811)  
Provision for credit losses 439 389 906 807  
Other 0 (1) (1) 0  
Allowance, ending balance 3,345 3,166 3,345 3,166 3,208
Consumer | Consumer mortgage          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Allowance, beginning balance 11 18 12 19 19
Charge-offs 0 (2) 0 (2) (3)
Recoveries 1 2 9 3  
Net charge-offs 1 0 9 1  
Provision for credit losses (1) (1) (10) (1)  
Other (1) 0 (1) (2)  
Allowance, ending balance 10 17 10 17 12
Consumer | Other          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Allowance, beginning balance       319 319
Charge-offs       (68) (68)
Recoveries       5  
Net charge-offs       (63)  
Provision for credit losses       (257)  
Other       1  
Allowance, ending balance   0   0  
Commercial          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Allowance, beginning balance 279 236 270 206 206
Charge-offs (51) (1) (52) (2) (2)
Recoveries 0 1 0 2  
Net charge-offs (51) 0 (52) 0  
Provision for credit losses (8) (4) 1 26  
Other 1 1 2 1  
Allowance, ending balance $ 221 $ 233 221 $ 233 270
Commercial | Consumer automotive          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Charge-offs         $ (2)
Commercial | Other          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Charge-offs     $ (52)