v3.26.3
Debt Instruments - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 14, 2026
Oct. 20, 2025
Apr. 29, 2025
Aug. 31, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
May 31, 2026
Mar. 31, 2026
Dec. 31, 2025
Aug. 31, 2025
May 31, 2023
Mar. 31, 2022
Dec. 31, 2021
Apr. 30, 2021
Feb. 29, 2020
Debt Instrument [Line Items]                                  
Short-term revolving facilities         $ 71,000,000   $ 71,000,000       $ 58,000,000            
Restricted cash         123,000,000 $ 79,000,000 123,000,000 $ 79,000,000     102,000,000            
Payment-in-kind interest expense             0 182,000,000                  
Loss on debt extinguishment         53,000,000 14,000,000 53,000,000 16,000,000                  
Unamortized original issue discount         4,000,000   4,000,000       0            
Debt issuance costs         37,000,000   37,000,000       36,000,000            
Long-term debt, current maturities         302,000,000   302,000,000       211,000,000            
Assets         15,195,000,000   15,195,000,000       13,201,000,000            
Variable Interest Entity, Not Primary Beneficiary                                  
Debt Instrument [Line Items]                                  
Outstanding principal, net of debt issuance costs         424,000,000   424,000,000       371,000,000            
Long-term debt, current maturities         161,000,000   161,000,000       148,000,000            
Variable Interest Entity, Not Primary Beneficiary | Asset Pledged as Collateral                                  
Debt Instrument [Line Items]                                  
Assets         427,000,000   427,000,000       374,000,000            
Leased Properties and Construction Improvements                                  
Debt Instrument [Line Items]                                  
Sale leaseback liability, net, included in long-term debt         482,000,000   482,000,000       482,000,000            
Senior Notes                                  
Debt Instrument [Line Items]                                  
Debt issuance costs         14,000,000   14,000,000       29,000,000            
Outstanding principal, net of debt issuance costs         2,264,000,000   2,264,000,000       3,918,000,000            
Long-term debt, current maturities         32,000,000   $ 32,000,000       0            
Maximum | Leased Properties and Construction Improvements                                  
Debt Instrument [Line Items]                                  
Sale leaseback transaction, expiration period             25 years                    
Sale leaseback transaction, renewal period (up to)             25 years                    
Minimum                                  
Debt Instrument [Line Items]                                  
Debt instrument, tenor, period   2 years 6 months                              
Minimum | Leased Properties and Construction Improvements                                  
Debt Instrument [Line Items]                                  
Sale leaseback transaction, expiration period             20 years                    
Notes due June 1, 2030 (the "2030 Senior Secured Notes") | Senior Notes                                  
Debt Instrument [Line Items]                                  
Total principal amount       $ 1,660,000,000 0   $ 0       1,660,000,000            
Repayments of senior debt       1,711,000,000                          
Redemption premium       50,000,000                          
Payment-in-kind interest expense       $ 1,000,000                          
Loss on debt extinguishment         53,000,000                        
Transaction fees, write offs and unamortized premium         3,000,000                        
Senior Secured Notes | Senior Notes                                  
Debt Instrument [Line Items]                                  
Total principal amount         $ 2,269,000,000   $ 2,269,000,000       3,929,000,000            
Percent of principal amount outstanding         100.00%   100.00%                    
Percent of principal amount outstanding, change control events         101.00%   101.00%                    
2028 Senior Secured Notes | Senior Notes                                  
Debt Instrument [Line Items]                                  
Repayments of senior debt               55,000,000                  
Redemption premium           13,000,000                      
Payment-in-kind interest expense               1,000,000                  
Loss on debt extinguishment           14,000,000   16,000,000                  
Transaction fees, write offs and unamortized premium           1,000,000   1,000,000                  
Debt instrument, redeemed during period           559,000,000                      
Payments for redemption of debt           578,000,000                      
Accrued interest, redemption           6,000,000                      
Debt instrument, repurchased during period               52,000,000                  
Senior Unsecured Notes | Senior Notes                                  
Debt Instrument [Line Items]                                  
Total principal amount         $ 107,000,000   $ 107,000,000       107,000,000            
Debt issuance costs         0   $ 0       1,000,000            
Senior Unsecured Notes | Senior Notes | Debt Instrument, Redemption, Period One                                  
Debt Instrument [Line Items]                                  
Debt instrument, redemption price, percentage of principal amount redeemed             35.00%                    
Debt instrument, redemption price, percentage             100.00%                    
Notes due May 1, 2030 ("2030 Senior Unsecured Notes") | Senior Notes                                  
Debt Instrument [Line Items]                                  
Total principal amount         27,000,000   $ 27,000,000       27,000,000            
Notes due May 1, 2030 ("2030 Senior Unsecured Notes") | Senior Notes | Debt Instrument, Redemption, Period One                                  
Debt Instrument [Line Items]                                  
Debt instrument, redemption price, percentage of principal amount redeemed             10.00%                    
Debt instrument, redemption price, percentage             105.125%                    
Loan Agreement with Citizens Bank | Secured Debt                                  
Debt Instrument [Line Items]                                  
Total principal amount   $ 250,000,000                              
Outstanding principal, net of debt issuance costs         142,000,000   $ 142,000,000       23,000,000            
Long-term debt, current maturities         24,000,000   24,000,000       4,000,000            
Loan Agreement with Citizens Bank | Maximum | Secured Debt                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate   2.95%                              
Debt instrument, term   7 years                              
Debt instrument, tenor, period   4 years                              
Loan Agreement with Citizens Bank | Minimum | Secured Debt                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate   2.80%                              
Debt instrument, term   4 years                              
Line of Credit | Under 25% Current Inventory                                  
Debt Instrument [Line Items]                                  
Deposit required under floor plan facility, percentage of principal balance     5.00%                            
Line of Credit | Between 25-49.99% Current Inventory                                  
Debt Instrument [Line Items]                                  
Deposit required under floor plan facility, percentage of principal balance     12.50%                            
Line of Credit | Over 50% Current Inventory                                  
Debt Instrument [Line Items]                                  
Deposit required under floor plan facility, percentage of principal balance     25.00%                            
Line of Credit | Floor plan facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)     $ 1,500,000,000                            
Short-term revolving facilities         71,000,000   71,000,000       58,000,000            
Line of credit facility, remaining borrowing capacity         1,400,000,000   1,400,000,000       1,400,000,000            
Restricted cash         $ 4,000,000   $ 4,000,000       $ 3,000,000            
Interest rate         4.81%   4.81%       5.77%            
Line of Credit | Floor plan facility | Under 25% Current Inventory                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate     0.70%                            
Debt instrument, amount drawn, percent of inventory balance     25.00%                            
Line of Credit | Floor plan facility | Between 25-49.99% Current Inventory                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate     0.50%                            
Debt instrument, amount drawn, percent of inventory balance     25.00%                            
Line of Credit | Floor plan facility | Between 25-49.99% Current Inventory | Maximum                                  
Debt Instrument [Line Items]                                  
Debt instrument, amount drawn, percent of inventory balance     50.00%                            
Line of Credit | Floor plan facility | Over 50% Current Inventory                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate     0.10%                            
Debt instrument, amount drawn, percent of inventory balance     50.00%                            
Line of Credit | Floor Plan Facility, 18-Month | Under 25% Current Inventory                                  
Debt Instrument [Line Items]                                  
Debt instrument, amount drawn, percent of inventory balance     25.00%                            
Line of Credit | Floor Plan Facility, 18-Month | Between 25-49.99% Current Inventory | Maximum                                  
Debt Instrument [Line Items]                                  
Debt instrument, amount drawn, percent of inventory balance     49.99%                            
Line of Credit | Floor Plan Facility, 18-Month | Between 25-49.99% Current Inventory | Minimum                                  
Debt Instrument [Line Items]                                  
Debt instrument, amount drawn, percent of inventory balance     25.00%                            
Line of Credit | Floor Plan Facility, 18-Month | Over 50% Current Inventory                                  
Debt Instrument [Line Items]                                  
Debt instrument, amount drawn, percent of inventory balance     50.00%                            
Revolving Credit Facility | SPVANA I Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                   $ 600,000,000              
Revolving Credit Facility | SPVANA II Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                             $ 600,000,000   $ 500,000,000
Revolving Credit Facility | SPVANA III Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                             $ 600,000,000 $ 500,000,000  
Revolving Credit Facility | SPVANA IV Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                       $ 600,000,000   $ 500,000,000      
Revolving Credit Facility | SPVANA V Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                       $ 600,000,000 $ 500,000,000        
Revolving Credit Facility | SPVANA VI Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)           $ 600,000,000   $ 600,000,000                  
Revolving Credit Facility | SPVANA VII Credit Facility                                  
Debt Instrument [Line Items]                                  
Line of credit facility, maximum borrowing capacity (up to)                 $ 500,000,000                
Revolving Credit Facility | All SPVANA Credit Facilities                                  
Debt Instrument [Line Items]                                  
Short-term revolving facilities         $ 0   $ 0       $ 0            
Line of credit facility, remaining borrowing capacity         $ 4,100,000,000   $ 4,100,000,000       $ 3,500,000,000            
Interest rate         5.49%   5.49%       5.64%            
Revolving Credit Facility | Finance receivable facilities                                  
Debt Instrument [Line Items]                                  
Restricted cash         $ 1,000,000   $ 1,000,000       $ 2,000,000            
Secured Debt | Term Loan B | Line of Credit                                  
Debt Instrument [Line Items]                                  
Interest rate 6.10%                                
Total principal amount $ 1,660,000,000                                
Debt instrument, issued, percent of aggregate principal amount 99.75%                                
Unamortized original issue discount $ 4,000,000                                
Debt issuance costs 17,000,000                                
Amortizes in equal quarterly installments $ 4,000,000                                
Debt instrument, amortization rate 1.00%                                
Debt instrument, repricing transaction, premium, percentage 1.00%                                
Outstanding principal, net of debt issuance costs         1,639,000,000   1,639,000,000                    
Long-term debt, current maturities         $ 12,000,000   $ 12,000,000                    
Secured Debt | Term Loan B | Line of Credit | Secured Overnight Financing Rate (SOFR)                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate 2.25%                                
Debt instrument, basis spread on variable rate, floor percentage 0.00%                                
Secured Debt | Term Loan B | Line of Credit | Base Rate                                  
Debt Instrument [Line Items]                                  
Debt instrument, basis spread on variable rate 1.25%                                
Debt instrument, basis spread on variable rate, floor percentage 1.00%