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Reorganization and Business Transformation (Tables) | 12 Months Ended
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Dec. 31, 2018
Restructuring and Related Activities [Abstract] |
Restructuring and Related Costs | :
In millions |  | 2018 |  | 2017 |  | 2016
Employee severance and other employee related cost |  | $ | — |  |  | $ | 2 |  |  | $ | 14 |
Asset write-downs |  | — |  |  | — |  |  | 80 |
Professional services, legal and other associated cost |  | — |  |  | 24 |  |  | 35 |
Employee severance and other employee-related costs related to headquarter transition and business transformation |  | 14 |  |  | — |  |  | — |
Transition support and other exit related costs for the headquarter transition and business transformation |  | 9 |  |  | — |  |  | — |
Total reorganization and business transformation cost |  | $ | 23 |  |  | $ | 26 |  |  | $ | 129 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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