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Goodwill And Acquisition-Related Intangibles, Net | 6 Months Ended
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Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill And Acquisition-Related Intangibles, Net | (6) GOODWILL AND ACQUISITION-RELATED INTANGIBLES, NET The changes in the carrying amount of goodwill for the six months ended September 30, 2020 are as follows (in millions):
| As of March 31, 2020 |  | Activity |  | Effects of Foreign Currency Translation |  | As of September 30, 2020
Goodwill | $ | 2,253 |  |  | $ | — |  |  | $ | 6 |  |  | $ | 2,259 |
Accumulated impairment | (368) |  |  | — |  |  | — |  |  | (368) |
Total | $ | 1,885 |  |  | $ | — |  |  | $ | 6 |  |  | $ | 1,891 |
Goodwill represents the excess of the purchase price over the fair value of the underlying acquired net tangible and intangible assets. Acquisition-related intangibles consisted of the following (in millions):
| As of September 30, 2020 |  | As of March 31, 2020
| Gross Carrying Amount |  | Accumulated Amortization |  | Acquisition- Related Intangibles, Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Acquisition- Related Intangibles, Net
Developed and core technology | $ | 474 |  |  | $ | (456) |  |  | $ | 18 |  |  | $ | 474 |  |  | $ | (450) |  |  | $ | 24 |
Trade names and trademarks | 161 |  |  | (137) |  |  | 24 |  |  | 161 |  |  | (132) |  |  | 29 |
Registered user base and other intangibles | 5 |  |  | (5) |  |  | — |  |  | 5 |  |  | (5) |  |  | — |
Carrier contracts and related | 85 |  |  | (85) |  |  | — |  |  | 85 |  |  | (85) |  |  | — |
Total | $ | 725 |  |  | $ | (683) |  |  | $ | 42 |  |  | $ | 725 |  |  | $ | (672) |  |  | $ | 53 |
Amortization of intangibles for the three and six months ended September 30, 2020 and 2019 are classified in the Condensed Consolidated Statements of Operations as follows (in millions):
| Three Months Ended September 30, |  | Six Months Ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Cost of revenue | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | 4 |
Operating expenses | 6 |  |  | 6 |  |  | 11 |  |  | 11 |
Total | $ | 6 |  |  | $ | 8 |  |  | $ | 11 |  |  | $ | 15 |
Acquisition-related intangible assets are amortized using the straight-line method over the lesser of their estimated useful lives or the agreement terms, currently from 1 to 5 years. As of September 30, 2020 and March 31, 2020, the weighted-average remaining useful life for acquisition-related intangible assets was approximately 1.9 and 2.4 years, respectively. As of September 30, 2020, future amortization of finite-lived acquisition-related intangibles that will be recorded in the Condensed Consolidated Statements of Operations is estimated as follows (in millions):
Fiscal Year Ending March 31, |
2021 (remaining six months) | $ | 11 |
2022 | 22 |
2023 | 9 |
2024 and thereafter | — |
Total | $ | 42 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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