v3.20.4

Income Taxes - Reconciliation of Statutory Income Tax Rate (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
amount |  |  |
Statutory income tax rate in the Netherlands | $ 0 | $ 73 | $ 594
Rate differential between the local statutory rates and the statutory rate of the Netherlands | 22 | 16 | 19
Net change in valuation allowance | 35 | 59 | 10
Non-deductible expenses/losses | 61 | 52 | 64
Netherlands tax incentives | (48) | (68) | (252)
Foreign tax incentives | (117) | (118) | (119)
Changes in estimates of prior years' income taxes | (13) | (3) | (83)
Sale of non-deductible goodwill | 10 | 0 | 0
Effective Income Tax Rate Reconciliation Withholding Taxes | (31) | 5 | (12)
Other differences | (2) | 4 | (45)
Effective tax rate | $ (83) | $ 20 | $ 176
% |  |  |
Statutory income tax rate in the Netherlands | 25.00% | 25.00% | 25.00%
Rate differential between the local statutory rates and the statutory rate of the Netherlands | 2175.00% | 5.50% | 0.80%
Net change in valuation allowance | 3500.00% | 20.20% | 0.40%
Non-deductible expenses/losses | 6100.00% | 17.80% | 2.70%
Netherlands tax incentives | (4800.00%) | (23.20%) | (10.60%)
Foreign tax incentives | (11700.00%) | (40.50%) | (5.00%)
Changes in estimates of prior years' income taxes | (1300.00%) | (1.20%) | (3.50%)
Sale of non-deductible goodwill | 1000.00% | 0.00% | 0.00%
Effective Income Tax Rate Withholding Taxes | (3100.00%) | 1.80% | (0.60%)
Other differences | (200.00%) | 1.50% | (1.80%)
Effective tax rate | (8300.00%) | 6.90% | 7.40%

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