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- Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Intangible assets with finite lives |  |
Gross Carrying Amount | $ 3,629 | $ 3,658
Accumulated Amortization and Impairment | 2,755 | 2,509
Net Carrying Amount | 874 | 1,149
Estimated amortization for intangible assets |  |
Remainder of 2019 | 96 |
2020 | 220 |
2021 | 126 |
2022 | 86 |
2023 | 76 |
2024 | 59 |
Thereafter | 211 |
Total | 874 |
Customer related and contract based |  |
Intangible assets with finite lives |  |
Gross Carrying Amount | 2,229 | 2,240
Accumulated Amortization and Impairment | 1,531 | 1,444
Net Carrying Amount | 698 | 796
Tradenames |  |
Intangible assets with finite lives |  |
Gross Carrying Amount | 1,025 | 1,027
Accumulated Amortization and Impairment | 899 | 740
Net Carrying Amount | 126 | 287
Technology and other |  |
Intangible assets with finite lives |  |
Gross Carrying Amount | 375 | 391
Accumulated Amortization and Impairment | 325 | 325
Net Carrying Amount | $ 50 | $ 66

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