Derivatives, Hedging Activities and Interest Expense

12 Months Ended

Mar. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives, Hedging Activities and Interest Expense

Note 6 – Derivatives, Hedging Activities and Interest Expense

Derivative Instruments

Our liabilities consist mainly of fixed and variable rate debt, denominated in U.S. dollars and various other currencies, which we issue in the global capital markets, while our assets consist primarily of U.S. dollar denominated, fixed rate receivables. We enter into interest rate swaps and foreign currency swaps to economically hedge the interest rate and foreign currency risks that result from the different characteristics of our assets and liabilities. Our use of derivative transactions is intended to reduce long-term fluctuations in the fair value of assets and liabilities caused by market movements. All of our derivatives are categorized as not designated for hedge accounting, and all of our derivative activities are authorized and monitored by our management and our Asset-Liability Committee which provides a framework for financial controls and governance to manage market risk.

All derivative instruments are recorded on the balance sheet at fair value, taking into consideration the effects of legally enforceable master netting agreements that allow us to net settle asset and liability positions and offset cash collateral with the same counterparty on a net basis. Changes in the fair value of our derivative instruments are recorded in Interest expense in our Consolidated Statements of Income. The derivative instruments are included as a component of Other assets or Other liabilities on our Consolidated Balance Sheets.

Offsetting of Derivatives

Accounting guidance permits the net presentation on our Consolidated Balance Sheets of derivative receivables and derivative payables with the same counterparty and the related cash collateral when a legally enforceable master netting agreement exists, or when the derivative receivables and derivative payables meet all the conditions for the right of setoff to exist. When we meet this condition, we elect to present such balances on a net basis.

Over-the-Counter (“OTC”) Derivatives

Our International Swaps and Derivatives Association Master Agreements are our master netting agreements which permit multiple transactions to be cancelled and settled with a single net balance paid to either party for our OTC derivatives. The master netting agreements also contain reciprocal collateral agreements which require the transfer of cash collateral to the party in a net asset position across all transactions. Our collateral agreements with substantially all our counterparties include a zero threshold, full collateralization arrangement. Although we have daily valuation and collateral exchange arrangements with all of our counterparties, due to the time required to move collateral, there may be a delay of up to one day between the exchange of collateral and the valuation of our derivatives. We would not be required to post additional collateral to the counterparties with whom we were in a net liability position at March 31, 2025, if our credit ratings were to decline, since we fully collateralize without regard to credit ratings with these counterparties. In addition, as our collateral agreements include legal right of offset provisions, collateral amounts are netted against derivative assets or derivative liabilities, and the net amount is included in Other assets or Other liabilities on our Consolidated Balance Sheets.

Centrally Cleared Derivatives

For our centrally cleared derivatives, variation margin payments are legally characterized as settlement payments and accounted for with corresponding derivative positions as one unit of account as opposed to collateral. Initial margin payments are separately recorded in Other assets on our Consolidated Balance Sheets. We perform valuation and margin exchange on a daily basis. Similar to the OTC swaps, there may be a delay of up to one day between the exchange of margin payments and the valuation of our derivatives.

Note 6 – Derivatives, Hedging Activities and Interest Expense (Continued)

Derivative Activity Impact on Consolidated Financial Statements

The following tables show the financial statement line item and amount of our derivative assets and liabilities that are reported on our Consolidated Balance Sheets:

	March 31, 2025					March 31, 2024
			Fair					Fair
	Notional		value			Notional		value
Other assets:
Interest rate swaps	$	41,880	$	363		$	71,830	$	1,149
Foreign currency swaps		3,497		132			1,759		89
Total	$	45,377	$	495		$	73,589	$	1,238
Counterparty netting				(207	)				(346	)
Collateral held				(242	)				(851	)
Carrying value of derivative contracts – Other assets			$	46				$	41
Other liabilities:
Interest rate swaps	$	64,440	$	31		$	38,920	$	52
Foreign currency swaps		7,026		717			7,433		918
Total	$	71,466	$	748		$	46,353	$	970
Counterparty netting				(207	)				(346	)
Collateral posted				(514	)				(601	)
Carrying value of derivative contracts – Other liabilities			$	27				$	23

As of March 31, 2025 and 2024, we held excess collateral and variation margin of $4 million and $5 million, respectively, which we did not use to offset derivative assets and were recorded in Other liabilities on our Consolidated Balance Sheets. As of March 31, 2025 and 2024, we posted initial margin, excess collateral, and variation margin of $288 million and $311 million, respectively, which we did not use to offset derivative liabilities and was recorded in Other assets on our Consolidated Balance Sheets.

The following table summarizes the components of interest expense, including the location and amount of gains and losses on derivative instruments and related hedged items, as reported in our Consolidated Statements of Income:

	Years Ended March 31,
	2025			2024			2023
Interest expense on debt	$	5,667		$	4,936		$	2,919
Interest expense (income) on derivatives		34			(661	)		(569	)
Interest expense on debt and derivatives		5,701			4,275			2,350
Gains on debt denominated in  foreign currencies		(96	)		(80	)		(614	)
(Gains) losses on foreign currency swaps		(108	)		(90	)		805
Losses on U.S. dollar interest rate swaps		328			600			513
Total interest expense	$	5,825		$	4,705		$	3,054

Interest expense on debt and derivatives represents net interest settlements and changes in accruals. Gains and losses on derivatives and debt denominated in foreign currencies exclude net interest settlements and changes in accruals. Cash flows associated with derivatives are reported in Net cash provided by operating activities in our Consolidated Statements of Cash Flows.