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Intangible Assets Gross Carrying Amount and Accumulated Amortization of Finite-lived Intangible Assets (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 2,466 | $ 2,479
Accumulated amortization | (330) | (286)
Net | 2,136 | 2,193
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 1,607 | 1,615
Accumulated amortization | (236) | (206)
Net | 1,371 | 1,409
Trade names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 541 | 547
Accumulated amortization | (23) | (17)
Net | 518 | 530
Technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 158 | 160
Accumulated amortization | (23) | (18)
Net | 135 | 142
Long term supply contracts |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 146 | 143
Accumulated amortization | (40) | (37)
Net | 106 | 106
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 14 | 14
Accumulated amortization | (8) | (8)
Net | $ 6 | $ 6

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