Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after income tax refund received, of cash paid to federal (national) tax jurisdiction for tax on income.

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Amount, after income tax refund received, of cash paid to foreign tax jurisdiction for tax on income.

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Amount, after income tax refund received, of cash paid to state and local tax jurisdictions for tax on income.

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Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2A
-Publisher FASB
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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 23
-Publisher FASB
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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
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Income Taxes - Income Taxes Paid (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Income Tax Paid, by Individual Jurisdiction [Line Items]
U.S. federal	$ 91
U.S. state and local	19
Income taxes paid, net of refunds	201	$ 404	$ 300
Canada - British Columbia
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	20
Canada - federal
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	15
Other foreign jurisdictions
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	$ 56