v3.26.1
BORROWINGS (Tables)
12 Months Ended
Mar. 31, 2026
BORROWINGS  
Summary of components of debt

March 31,

March 31,

(Dollars in millions)

Interest Rate

Maturity

2026

2025

Unsecured senior notes due 2026

  ​ ​ ​

2.05%

October 2026

$

700

$

700

Unsecured senior notes due 2028

2.70%

October 2028

500

500

Unsecured senior notes due 2031

3.15%

October 2031

650

650

Unsecured senior notes due 2034

6.35%*

February 2034

500

500

Unsecured senior notes due 2041

4.10%

October 2041

550

550

Finance lease and other obligations

5.39%†

2027-2032

204

290

$

3,104

$

3,190

Less: Unamortized discount

4

4

Less: Unamortized debt issuance costs

  ​

  ​

12

14

Less: Current portion of long-term debt

  ​

  ​

796

129

Total long-term debt

  ​

  ​

$

2,293

$

3,042

*      Including the cross-currency swaps that the Company entered into subsequent to the issuance of the unsecured senior notes due 2034, the effective interest rate on such notes was approximately 3.84% at the time of issuance. For more information, see Note 7 – Financial Assets and Liabilities.

     Weighted-average discount rate

Schedule of contractual obligations of long-term debt outstanding

(Dollars in millions)*

  ​ ​ ​

Principal

Year ending March 31:

2027

$

710

2028

 

2029

 

500

2030

 

2031

Thereafter

 

1,700

Total

$

2,910

*    Contractual obligations approximate scheduled repayments.