Document and Entity Information
Document and Entity Information - USD ($) $ in Millions | 12 Months Ended | ||
Mar. 31, 2023 | May 09, 2023 | Sep. 30, 2022 | |
Cover [Abstract] | |||
Document Type | 10-K/A | ||
Document Period End Date | Mar. 31, 2023 | ||
Entity File Number | 001-32312 | ||
Entity Registrant Name | Novelis Inc. | ||
Entity Incorporation, State or Country Code | Z4 | ||
Entity Tax Identification Number | 98-0442987 | ||
Entity Address, City or Town | Atlanta | ||
Entity Address, State or Province | GA | ||
Entity Address, Postal Zip Code | 30326 | ||
City Area Code | (404) | ||
Local Phone Number | 760-4000 | ||
Entity Central Index Key | 0001304280 | ||
Amendment Flag | false | ||
Document Fiscal Year Focus | 2023 | ||
Document Fiscal Period Focus | FY | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | Yes | ||
Entity Current Reporting Status | No | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Common Stock, Shares Outstanding | 1,000 | ||
Entity Interactive Data Current | Yes | ||
Entity Shell Company | false | ||
Document Transition Report | false | ||
Document Annual Report | true | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Documents Incorporated by Reference | None | ||
Entity Public Float | $ 0 | ||
Auditor Firm ID | 238 | ||
Auditor Name | PricewaterhouseCoopers LLP | ||
Auditor Location | Atlanta, Georgia | ||
Current Fiscal Year End Date | --03-31 |