X0306 4 2020-02-16 false 0001489393 LyondellBasell Industries N.V. LYB 0001500293 Patel Bhavesh V. 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM true true false false Chief Executive Officer Class A Ordinary Shares 2020-02-16 4 F false 11941.00 82.60 D 109276.00 D Class A ordinary shares 195375.00 I By Family Trust Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 30,344 shares of restricted stock units granted to the reporting person on February 16, 2017. Includes 61,853 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 27,071 granted on February 21, 2018 that vest on February 21, 2021 and 34,782 granted on February 21, 2019 that vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2020-02-17