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v3.20.4

Deferred tax assets and liabilities (Details 5) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Deferred tax asset and liability valuation [abstract] |  |
Items previously recognized in consolidated income statement | $ 234 |
Items previously recognized in other comprehensive income | (358) |
Total revaluation of deferred tax assets and liabilities | $ (124) |
Impact of new tax reform effective tax rate after implemetation of new reform changes | 13.00% | 8.00%
Impact of new tax reform effective blended tax rate after implemetation of new reform changes | 13.00% | 22.00%
Income statement [member] |  |
Deferred tax asset and liability valuation [abstract] |  |
Items previously recognized in consolidated income statement | $ 234 |
Total revaluation of deferred tax assets and liabilities | 234 |
Equity [member] |  |
Deferred tax asset and liability valuation [abstract] |  |
Items previously recognized in other comprehensive income | (358) |
Total revaluation of deferred tax assets and liabilities | $ (358) |

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