v3.26.1
BORROWINGS (Tables)
3 Months Ended
Jun. 30, 2026
BORROWINGS  
Summary of components of debt

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June 30,

​

March 31,

(Dollars in millions)

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Interest Rate

​

Maturity

​

2026

​

2026

Unsecured senior notes due 2026

  ​ ​ ​

2.05%

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October 2026

​

$

700

​

$

700

Unsecured senior notes due 2028

​

2.70%

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October 2028

​

​

500

​

​

500

Unsecured senior notes due 2031

​

3.15%

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October 2031

​

​

650

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​

650

Unsecured senior notes due 2034

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6.35%(1)

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February 2034

​

​

500

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​

500

Unsecured senior notes due 2041

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4.10%

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October 2041

​

​

550

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​

550

Finance lease and other obligations

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5.54%(2)

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2027-2032

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​

185

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​

204

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​

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$

3,085

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$

3,104

Less: Unamortized discount

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3

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4

Less: Unamortized debt issuance costs

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  ​

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  ​

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11

​

​

12

Less: Current portion of long-term debt

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  ​

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  ​

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781

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​

796

Total long-term debt

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  ​

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  ​

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$

2,289

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$

2,293

(1)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.
(2)Weighted-average discount rate.

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Schedule of contractual obligations of long-term debt outstanding

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(Dollars in millions)*

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Principal

Year ending March 31:

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​

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2027 (remaining nine months)

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$

703

2028

​

 

—

2029

​

 

500

2030

​

 

—

2031

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​

—

Thereafter

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1,700

Total

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$

2,903

*    Contractual obligations approximate scheduled repayments.