  Production cross sections of the standard model Higgs boson decaying to a
pair of W bosons are measured in proton-proton collisions at a center-of-mass
energy of 13 TeV. The analysis targets Higgs bosons produced via gluon fusion,
vector boson fusion, and in association with a W or Z boson. Candidate events
are required to have at least two charged leptons and moderate missing
transverse momentum, targeting events with at least one leptonically decaying W
boson originating from the Higgs boson. Results are presented in the form of
inclusive and differential cross sections in the simplified template cross
section framework, as well as couplings of the Higgs boson to vector bosons and
fermions. The data set collected by the CMS detector during 2016-2018 is used,
corresponding to an integrated luminosity of 138 fb$^{-1}$. The signal strength
modifier $\mu$, defined as the ratio of the observed production rate in a given
decay channel to the standard model expectation, is measured to be $\mu$ = 0.95
$^{+0.10}_{-0.09}$. All results are found to be compatible with the standard
model within the uncertainties.
