| **BORROWINGS**                 | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                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| **Debt Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| BORROWINGS                     | BORROWINGSTotal borrowings and other debt obligations at June 30, 2016 was $46.8 billion, compared to $49.1 billion at December 31, 2015. The Company's debt agreements impose certain limitations on dividends, and other payments and transactions. The Company is currently in compliance with these limitations. Periodically, as part of the Company's wholesale funding management, it opportunistically repurchases outstanding borrowings in the open market and subsequently retires the obligations. The Company did not repurchase any outstanding borrowings during the six-month period endedJune 30, 2016 or June 30, 2015. On February 22, 2016, the Company issued a $1.5 billion of senior unsecured floating rate notes to Santander. The note had a floating rate equal to the three-month London Interbank Offered Rate ("LIBOR") plus 218 basis points with a maturity of August 22, 2017. The proceeds of the notes were used for general corporate purposes. During the quarter ended June 30, 2016 the Company repaid this note at par with no prepayment penalty.On May 23, 2016, the Company issued $1.0 billion in aggregate principal amount of its 2.70% senior notes due May 2019 and $600 million in aggregate principal amount of its senior floating rate notes. These notes have a floating rate equal to the three-month LIBOR plus 145 basis points with a maturity of November 2017.During the first quarter of 2016, the Bank terminated $1.3 billion of FHLB advances. As a consequence, the Company incurred costs of $32.9 million through the loss on debt extinguishment. During the second quarter of 2016, the Bank terminated $1.5 billion of FHLB advances. As a consequence, the Company incurred costs of $45.6 million through a loss on debt extinguishment. Parent Company Borrowings and Debt ObligationsThe following table presents information regarding the Parent Company borrowings and other debt obligations at the dates indicated: June 30, 2016 December 31, 2015 Balance EffectiveRate Balance EffectiveRate (dollars in thousands)4.625% senior notes, due April 2016 $— —% $475,723 4.85%Senior notes, due November 2017(1)598,263 2.33% — —%3.45% senior notes, due August 2018498,198 3.62% 497,800 3.62%2.70% senior notes, due May 2019996,226 2.84% — —%2.65% senior notes, due April 2020993,907 2.82% 993,151 2.82%4.50% senior notes, due July 20251,094,717 4.56% 1,094,483 4.56%Junior subordinated debentures - Capital Trust VI, due June 203669,786 7.91% 69,775 7.91%Common securities - Capital Trust VI10,000 7.91% 10,000 7.91%Junior subordinated debentures - Capital Trust IX, due July 2036149,419 2.44% 149,404 2.18%Common securities - Capital Trust IX4,640 2.44% 4,640 2.18%     Total Parent Company borrowings and other debt obligations$4,415,156 3.36% $3,294,976 3.91%(1)  These notes bear interest at a rate equal to three-month LIBOR plus 145 basis points per annum.NOTE 10. BORROWINGS (continued)Bank Borrowings and Debt ObligationsThe following table presents information regarding the Bank's borrowings and other debt obligations at the dates indicated:  June 30, 2016 December 31, 2015 Balance EffectiveRate Balance EffectiveRate (dollars in thousands)2.00% senior notes, due January 2018$747,257 2.24% $746,381 2.24%Senior notes, due January 2018(1)249,557 1.68% 249,415 1.31%8.750% subordinated debentures, due May 2018498,520 8.92% 498,175 8.92%Subordinated term loan, due February 2019125,188 6.53% 130,899 6.15%FHLB advances, maturing through July 20199,000,000 1.05% 13,885,000 1.40%REIT preferred, due May 2020155,692 13.45% 154,930 13.66%Subordinated term loan, due August 202229,648 8.28% 30,344 7.89%     Total Bank borrowings and other debt obligations$10,805,862 1.77% $15,695,144 1.85%(1)  These notes will bear interest at a rate equal to three-month LIBOR plus 93 basis points per annum.Revolving Credit FacilitiesThe following tables present information regarding SC's credit facilities as of June 30, 2016 and December 31, 2015: June 30, 2016 Balance EffectiveRate Assets Pledged Restricted Cash Pledged (dollars in thousands)Warehouse line, maturing on various dates(1)$449,585 2.27% $621,893 $18,030Warehouse line, due July 2016(2)266,084 1.72% 371,360 —Warehouse line, due November 2016(3)175,000 2.00% — —Warehouse line, due November 2016(3)250,000 2.00% — 2,502Warehouse line, due June 2017124,396 3.10% 300,020 25,055Warehouse line, due July 2017(4)843,820 1.49% 957,299 26,983Warehouse line, due July 2017(5)2,775,843 1.44% 4,234,607 60,400Warehouse line, due December 2017576,777 2.39% 821,314 26,889Warehouse line, due January 201891,500 3.08% 127,284 4,167Warehouse line, due March 2018(6)428,899 1.52% 609,417 18,123Repurchase facility, due May 2017(7)787,703 2.71% — 31,763Repurchase facility, due April 2017(7)235,509 1.79% — —Line of credit with related party, due December 2016(8)1,000,000 2.71% — —Line of credit with related party, due December 2016(8)500,000 2.75% — —Line of credit with related party, due December 2018(8)550,000 2.80% — —     Total SC revolving credit facilities$9,055,116 2.04% $8,043,194 $213,912(1)  As of June 30, 2016, half of the outstanding balance on this facility matures in March 2017 and half matures in March 2018. (2)  As of December 31, 2015 this warehouse line was due in June 2016. It was subsequently amended in July 2016 to extend the maturity to January 2018.(3)  These lines are collateralized by residuals retained by SC.(4)  This line is held exclusively for financing Chrysler Capital loans.(5)  This line is held exclusively for financing Chrysler Capital leases.(6)  As of December 31, 2015 this warehouse line was due in September 2017.(7)  This repurchase facility is collateralized by securitization notes payable retained by SC. No portion of this facility is unsecured. These facilities have rolling maturities up to 180 days.(8)  These lines are also collateralized by securitization notes payable and residuals retained by SC. As of June 30, 2016, $1.4 billion of the aggregate outstanding balances on these credit facilities was unsecured. NOTE 10. BORROWINGS (continued) December 31, 2015 Balance EffectiveRate Assets Pledged Restricted Cash Pledged (dollars in thousands)Warehouse line, maturing on various dates(1)$808,135 1.29% $1,137,257 $24,942Warehouse line, due June 2016378,301 1.48% 535,737 —Warehouse line, due November 2016(2)175,000 1.90% — —Warehouse line, due November 2016(2)250,000 1.90% — 2,501Warehouse line, due July 2017(3)682,720 1.35% 809,185 20,852Warehouse line, due July 2017(4)2,247,443 1.41% 3,412,321 48,589Warehouse line, due September 2017565,399 1.20% 824,327 15,759Warehouse line, due December 2017 (5)944,877 1.56% 1,345,051 32,038Repurchase facility, due December 2016(6)850,904 2.07% — 34,166Line of credit with related party, due December 2016(7)1,000,000 2.61% — —Line of credit with related party, due December 2016(7)500,000 2.65% — —Line of credit with related party, due December 2018(7)800,000 2.84% — —     Total SC revolving credit facilities$9,202,779 1.81% $8,063,878 $178,847(1)  As of June 30, 2016, half of the outstanding balance on this facility matures in March 2017 and half matures in March 2018. (2)  These lines are collateralized by residuals retained by SC.(3)  This line is held exclusively for financing Chrysler Capital loans.(4)  This line is held exclusively for financing Chrysler Capital leases.(5)  In December 2015, the commitment on this warehouse line was amended to extend the commitment termination date to December 2017.(6)  This repurchase facility is collateralized by securitization notes payable retained by SC. No portion of this facility is unsecured. This facility has rolling 30-day and 180-day maturities.(7)  These lines are also collateralized by securitization notes payable and residuals retained by SC. As of June 30, 2016, $1.4 billion of the aggregate outstanding balances on these credit facilities was unsecured. Secured Structured FinancingsThe following tables present information regarding SC's secured structured financings as of June 30, 2016 and December 31, 2015: June 30, 2016 Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Range Collateral Restricted Cash (dollars in thousands)SC public securitizations, maturing on various dates(1)$14,202,169 $30,001,112  0.89% - 2.46%  $18,399,755 $1,457,747SC privately issued amortizing notes, maturing on various dates(1)8,303,636 13,035,991  0.88% - 2.86%  11,763,437 494,816     Total SC secured structured financings$22,505,805 $43,037,103  0.88% - 2.86%  $30,163,192 $1,952,563(1)  SC has entered into various securitization transactions involving its retail automotive installment loans and leases. These transactions are accounted for as secured financings and therefore both the securitized RICs, and the related securitization debt issued by SPEs, remain on the Condensed Consolidated Balance Sheets. The maturity of this debt is based on the timing of repayments from the securitized assets.NOTE 10. BORROWINGS (continued) December 31, 2015 Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Range Collateral Restricted Cash (dollars in thousands)SC public securitizations, maturing on various dates(1)$12,679,987 $24,923,292 0.89% - 2.29% $16,256,067 $1,242,857SC privately issued amortizing notes, maturing on various dates(1)8,213,217 11,729,171 0.88% - 2.81% 11,495,352 457,840     Total SC secured structured financings$20,893,204 $36,652,463 0.88% - 2.81% $27,751,419 $1,700,697(1)  SC has entered into various securitization transactions involving its retail automotive installment loans and leases. These transactions are accounted for as secured financings and therefore both the securitized RICs, and the related securitization debt issued by SPEs, remain on the Condensed Consolidated Balance Sheets. The maturity of this debt is based on the timing of repayments from the securitized assets.Most of SC's secured structured financings are in the form of public, SEC-registered securitizations. The Company also executes private securitizations under Rule 144A of the Securities Act of 1933, as amended (the "Securities Act"), and periodically issues private term amortizing notes, which are structured similarly to securitizations but are acquired by banks and conduits. The Company's securitizations and private issuances are collateralized by RICs or vehicle leases.   |

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| - References
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| - Definition
The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
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