Ajuts: We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of MINECO, Spain and EPLANET, ERC, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union. PIC (Spain). Funded by SCOAP3.Distributions of transverse momentum and the related angular variable of Drell–Yan lepton pairs are measured in 20.3 fb of proton–proton collisions at  TeV with the ATLAS detector at the LHC. Measurements in electron-pair and muon-pair final states are corrected for detector effects and combined. Compared to previous measurements in proton–proton collisions at  TeV, these new measurements benefit from a...