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Debt and Financing Activities - Commercial Paper Narrative (Details) - Commercial Paper - USD ($) | 6 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Mar. 31, 2022
Debt Instrument [Line Items] |  |  |
Outstanding notes (up to) | $ 4,000,000,000 |  |
Proceeds from issuance of commercial paper | 100,000,000 | $ 3,000,000,000 |
Repayments of commercial paper | 100,000,000 | $ 3,000,000,000 |
Commercial paper | $ 0 |  | $ 0

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- Definition Carrying value as of the balance sheet date of the current portion of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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