v3.26.3
FINANCE RECEIVABLES AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Credit Quality (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivables $ 119,085   $ 119,085   $ 120,707
Total 189 $ 176 552 $ 503  
Consumer          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivable, originated, more than five years before current fiscal year 1,268   1,268   1,221
Financing receivable, year five, originated, four years before current fiscal year 3,421   3,421   2,295
Financing receivable, originated three years before latest fiscal year 9,321   9,321   6,489
Financing receivable, originated two years before latest fiscal year 19,731   19,731   15,399
Financing receivable, originated in fiscal year before latest fiscal year 26,213   26,213   27,118
Financing receivable, originated in current fiscal year 23,011   23,011   32,850
Financing receivables $ 82,965   $ 82,965   $ 85,372
Percent 100.00%   100.00%   100.00%
Financing receivable, originated, more than five years before current fiscal year, writeoff     $ 44   $ 54
Financing receivable, year five, originated, four years before current fiscal year, writeoff     67   54
Financing receivable, year four, originated, three years before current fiscal year, writeoff     120   124
Financing receivable, year three, originated, two years before current fiscal year, writeoff     167   187
Financing receivable, year two, originated, fiscal year before current fiscal year, writeoff     123   205
Financing receivable, year one, originated, current fiscal year, writeoff     17   42
Total $ 180 $ 177 538 $ 490 666
Consumer | Total past due          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivable, originated, more than five years before current fiscal year 84   84   82
Financing receivable, year five, originated, four years before current fiscal year 127   127   89
Financing receivable, originated three years before latest fiscal year 232   232   190
Financing receivable, originated two years before latest fiscal year 316   316   303
Financing receivable, originated in fiscal year before latest fiscal year 290   290   364
Financing receivable, originated in current fiscal year 135   135   226
Financing receivables $ 1,184   $ 1,184   $ 1,254
Percent 1.40%   1.40%   1.50%
Consumer | 31-60 days past due          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivable, originated, more than five years before current fiscal year $ 60   $ 60   $ 61
Financing receivable, year five, originated, four years before current fiscal year 93   93   65
Financing receivable, originated three years before latest fiscal year 172   172   139
Financing receivable, originated two years before latest fiscal year 234   234   228
Financing receivable, originated in fiscal year before latest fiscal year 213   213   275
Financing receivable, originated in current fiscal year 100   100   166
Financing receivables $ 872   $ 872   $ 934
Percent 1.00%   1.00%   1.10%
Consumer | Greater than 60 days past due          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivable, originated, more than five years before current fiscal year $ 24   $ 24   $ 21
Financing receivable, year five, originated, four years before current fiscal year 34   34   24
Financing receivable, originated three years before latest fiscal year 60   60   51
Financing receivable, originated two years before latest fiscal year 82   82   75
Financing receivable, originated in fiscal year before latest fiscal year 77   77   89
Financing receivable, originated in current fiscal year 35   35   60
Financing receivables $ 312   $ 312   $ 320
Percent 0.40%   0.40%   0.40%
Consumer | Current          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing receivable, originated, more than five years before current fiscal year $ 1,184   $ 1,184   $ 1,139
Financing receivable, year five, originated, four years before current fiscal year 3,294   3,294   2,206
Financing receivable, originated three years before latest fiscal year 9,089   9,089   6,299
Financing receivable, originated two years before latest fiscal year 19,415   19,415   15,096
Financing receivable, originated in fiscal year before latest fiscal year 25,923   25,923   26,754
Financing receivable, originated in current fiscal year 22,876   22,876   32,624
Financing receivables $ 81,781   $ 81,781   $ 84,118
Percent 98.60%   98.60%   98.50%