v3.8.0.1

Intangible Assets | 12 Months Ended
--- | ---
Dec. 31, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Intangible Assets | Intangible Assets Intangible assets, excluding goodwill, include acquired licensed and core technologies, customer relationships, license agreements, trade name, and in-process research and development (IPR&D). Amortization for the intangible assets that have finite useful lives is generally recorded on a straight-line basis over their useful lives. A summary of the finite-lived identifiable intangible assets is as follows (in millions):
| December 31, 2017 |  | January 1, 2017
| Gross Carrying Amount |  | Accumulated Amortization |  | Intangibles, Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Intangibles, Net
Licensed technologies | $ | 95 |  |  | $ | (74 | ) |  | $ | 21 |  |  | $ | 95 |  |  | $ | (64 | ) |  | $ | 31 |
Core technologies | 300 |  |  | (161 | ) |  | 139 |  |  | 328 |  |  | (142 | ) |  | 186 |
Customer relationships | 32 |  |  | (25 | ) |  | 7 |  |  | 33 |  |  | (22 | ) |  | 11 |
License agreements | 14 |  |  | (8 | ) |  | 6 |  |  | 14 |  |  | (7 | ) |  | 7 |
Trade name | 7 |  |  | (5 | ) |  | 2 |  |  | 5 |  |  | (3 | ) |  | 2 |
Total finite-lived intangible assets, net | $ | 448 |  |  | $ | (273 | ) |  | $ | 175 |  |  | $ | 475 |  |  | $ | (238 | ) |  | $ | 237 |
The estimated annual amortization of finite-lived intangible assets for the next five years is shown in the following table (in millions). Actual amortization expense to be reported in future periods could differ from these estimates as a result of acquisitions, divestitures, and asset impairments, among other factors.
| Estimated Annual Amortization
2018 | $ | 36 |
2019 | 32 |
2020 | 24 |
2021 | 21 |
2022 | 17 |
Thereafter | 45 |
Total | $ | 175 |

X
- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration