| Long-term Debt Including Unamortized Debt Discounts and Premiums |
The following table lists long-term debt by instrument outstanding as of March 31, 2026 and December 31, 2025: | | | | | | | | | | | | | Date of Issuance | Principal Amount Outstanding | | March 31, 2026 | December 31, 2025 | | CSC Fixed-rate Senior Notes: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3.450% due February 13, 2026 | 11/13/15 | $ | — | | $ | 350 | | 0.900% due March 11, 2026 | 12/11/20 | — | | 1,250 | | 1.150% due May 13, 2026 | 05/13/21 | 1,000 | | 1,000 | | 5.875% due August 24, 2026 | 08/24/23 | 1,000 | | 1,000 | | 3.200% due March 2, 2027 | 03/02/17 | 650 | | 650 | | 2.450% due March 3, 2027 | 03/03/22 | 1,500 | | 1,500 | | 3.300% due April 1, 2027 | 09/24/21 | 744 | | 744 | | 3.200% due January 25, 2028 | 12/07/17 | 700 | | 700 | | 2.000% due March 20, 2028 | 03/18/21 | 1,250 | | 1,250 | | 4.000% due February 1, 2029 | 10/31/18 | 600 | | 600 | | 3.250% due May 22, 2029 | 05/22/19 | 600 | | 600 | | 2.750% due October 1, 2029 | 09/24/21 | 475 | | 475 | | 4.625% due March 22, 2030 | 03/24/20 | 500 | | 500 | | 1.650% due March 11, 2031 | 12/11/20 | 750 | | 750 | | 2.300% due May 13, 2031 | 05/13/21 | 750 | | 750 | | 1.950% due December 1, 2031 | 08/26/21 | 850 | | 850 | | 2.900% due March 3, 2032 | 03/03/22 | 1,000 | | 1,000 | | | CSC Floating-rate Senior Notes: | | | | | | | | | | | | SOFR + 0.520% due May 13, 2026 | 05/13/21 | 500 | | 500 | | SOFR + 1.050% due March 3, 2027 | 03/03/22 | 500 | | 500 | | CSC Fixed-to-Floating rate Senior Notes (1): | | | | 5.643% due May 19, 2029 | 05/19/23 | 1,200 | | 1,200 | | 6.196% due November 17, 2029 | 11/17/23 | 1,300 | | 1,300 | | 4.343% due November 14, 2031 | 11/14/25 | 1,000 | | 1,000 | | 5.853% due May 19, 2034 | 05/19/23 | 1,300 | | 1,300 | | 6.136% due August 24, 2034 | 08/24/23 | 1,350 | | 1,350 | | 4.914% due November 14, 2036 | 11/14/25 | 1,000 | | 1,000 | | | Total CSC Senior Notes | | 20,519 | | 22,119 | | | Ameritrade Holding LLC Fixed-rate Senior Notes: | | | | | | | | | | | | | | | | 3.300% due April 1, 2027 | 04/27/17 | 56 | | 56 | | 2.750% due October 1, 2029 | 08/16/19 | 25 | | 25 | | | | | | | | | | | Total Ameritrade Holding LLC Senior Notes | | 81 | | 81 | | | Finance lease liabilities | | 30 | | 37 | | | Unamortized premium — net | | 29 | | 33 | | | Debt issuance costs | | (76) | | (82) | | Fair value hedging basis adjustments (2) | | (97) | | 11 | | | Total long-term debt | | $ | 20,486 | | $ | 22,199 | |
(1) Interest rates presented are those in effect at March 31, 2026. See table below for additional information regarding future interest rates on fixed-to-floating rate Senior Notes. (2) This represents the amount of fair value hedge basis adjustments related to Senior Notes hedged. See Note 12 for more information on hedging of Senior Notes. The following table details the changes in future interest rates on fixed-to-floating rate Senior Notes as of March 31, 2026: | | | | | | | | | | | | | | | | Maturity Date | Fixed Semi-annual Interest Rate | Date of Issuance | Floating Quarterly Interest Rate | Interest Rate Reset Date | | May 19, 2029 | 5.643% | 05/19/23 | SOFR + 2.210% | 05/19/28 | | November 17, 2029 | 6.196% | 11/17/23 | SOFR + 1.878% | 11/17/28 | | November 14, 2031 | 4.343% | 11/14/25 | SOFR + 0.940% | 11/14/30 | | May 19, 2034 | 5.853% | 05/19/23 | SOFR + 2.500% | 05/19/33 | | August 24, 2034 | 6.136% | 08/24/23 | SOFR + 2.010% | 08/24/33 | | November 14, 2036 | 4.914% | 11/14/25 | SOFR + 1.230% | 11/14/35 |
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| Annual Maturities on Debt Outstanding |
Annual maturities on all long-term debt outstanding at March 31, 2026 are as follows: | | | | | | | Maturities | | 2026 | $ | 2,517 | | | 2027 | 3,463 | | | 2028 | 1,950 | | | 2029 | 4,200 | | | 2030 | 500 | | | Thereafter | 8,000 | | | Total maturities | 20,630 | | | Unamortized premium — net | 29 | | | Debt issuance costs | (76) | | Fair value hedging basis adjustments (1) | (97) | | | Total long-term debt | $ | 20,486 | |
(1) This represents the amount of fair value hedge basis adjustments related to long-term debt hedged. See Note 12 for more information on hedging of long-term debt. Annual maturities on other short-term borrowings outstanding at March 31, 2026 are as follows: | | | | | | | | | 2026 | | | | | | | | Other short-term borrowings | $ | 12,486 | | | | | | | |
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