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Goodwill and Other Intangibles (Tables) | 6 Months Ended
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Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Goodwill by Reportable Segment | The following is a progression of goodwill by reportable segment for the six months ended March 31, 2022.
| Life |  |  | Personal |  |  | Specialty |  |  |  |  |  |  |
(In millions) | Sciences |  |  | Care (a) |  |  | Additives (a) |  |  | Intermediates (a) |  |  | Total |
Balance at September 30, 2021 | $ | 856 |  |  | $ | 129 |  |  | $ | 445 |  |  | $ | — |  |  | $ | 1,430 |
Currency translation |  | (16 | ) |  |  | (3 | ) |  |  | (7 | ) |  |  | — |  |  |  | (26 | )
Balance at March 31, 2022 | $ | 840 |  |  | $ | 126 |  |  | $ | 438 |  |  | $ | — |  |  | $ | 1,404 |
(a) As of March 31, 2022 and September 30, 2021, there were accumulated impairments of $356 million, $174 million and $90 million related to the Personal Care, Specialty Additives and Intermediates reportable segments, respectively.
Summary of Intangible Assets | Intangible assets were comprised of the following as of March 31, 2022 and September 30, 2021.
| March 31, 2022 |
| Gross |  |  |  |  |  | Net |
| carrying |  |  | Accumulated |  |  | carrying |
(In millions) | amount |  |  | amortization |  |  | amount |
Definite-lived intangibles |  |  |  |  |  |  |  |
Trademarks and trade names | $ | 99 |  |  | $ | (35 | ) |  | $ | 64 |
Intellectual property |  | 744 |  |  |  | (516 | ) |  |  | 228 |
Customer and supplier relationships |  | 839 |  |  |  | (368 | ) |  |  | 471 |
Total definite-lived intangibles |  | 1,682 |  |  |  | (919 | ) |  |  | 763 |
Indefinite-lived intangibles |  |  |  |  |  |  |  |
Trademarks and trade names |  | 278 |  |  |  | — |  |  |  | 278 |
Total intangible assets | $ | 1,960 |  |  | $ | (919 | ) |  | $ | 1,041 |
| September 30, 2021 |
| Gross |  |  |  |  |  | Net |
| carrying |  |  | Accumulated |  |  | carrying |
(In millions) | amount |  |  | amortization |  |  | amount |
Definite-lived intangibles |  |  |  |  |  |  |  |
Trademarks and trade names | $ | 101 |  |  | $ | (32 | ) |  | $ | 69 |
Intellectual property |  | 750 |  |  |  | (495 | ) |  |  | 255 |
Customer and supplier relationships |  | 849 |  |  |  | (352 | ) |  |  | 497 |
Total definite-lived intangibles |  | 1,700 |  |  |  | (879 | ) |  |  | 821 |
Indefinite-lived intangibles |  |  |  |  |  |  |  |
Trademarks and trade names |  | 278 |  |  |  | — |  |  |  | 278 |
Total intangible assets | $ | 1,978 |  |  | $ | (879 | ) |  | $ | 1,099 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite and infinite life, by major class. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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