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v3.22.2.2

Debt and Financing Activities - Long-Term Debt Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 23, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Mar. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt |  | $ 5,613 |  | $ 5,613 |  | $ 5,879
Current portion of long-term debt |  | 800 |  | 800 |  | $ 799
Payments for debt extinguishments |  |  |  | 0 | $ 184 |
Loss on debt extinguishment |  | $ 0 | $ (191) | $ 0 | $ (191) |
2.85% Notes due March 15, 2023 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 2.85% | 2.85% |  | 2.85% |  |
3.80% Notes due March 15, 2024 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 3.80% | 3.80% |  | 3.80% |  |
7.65% Debentures due March 1, 2027 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 7.65% | 7.65% |  | 7.65% |  |
3.95% Notes due February 16, 2028 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 3.95% | 3.95% |  | 3.95% |  |
4.75% Notes due May 30, 2029 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 4.75% | 4.75% |  | 4.75% |  |
6.00% Notes due March 1, 2041 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 6.00% | 6.00% |  | 6.00% |  |
4.88% Notes due March 15, 2044 | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate on debt instrument (percent) | 4.88% | 4.88% |  | 4.88% |  |
Tender Offer Notes | Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate consideration of debt redeemed | $ 1,100 |  |  |  |  |
Debt principal redeemed | $ 922 |  |  |  |  |
Redemption price percentage of principal (percent) | 100.00% |  |  |  |  |
Payments for debt extinguishments | $ 182 |  |  |  |  |
Accrued unpaid interest | 14 |  |  |  |  |
Loss on debt extinguishment | 191 |  |  |  |  |
Debt premiums | 182 |  |  |  |  |
Write-off of unamortized debt issuance costs and transaction fees | $ 9 |  |  |  |  |

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