I don't remember the details but is Ford's hybrid powertrain based on Toyota's design and technology? I know this site says it's not built by Toyota and it's in house.
The info may be out of date but this is what wikipedia says on the subject:
"Ford Motor Company independently developed a system with key technologies similar to Toyota's HSD technology in 2004. As a result, Ford licensed 21 patents from Toyota in exchange for patents relating to emissions technology.[38]
Aisin Seiki Co., minority-owned by Toyota, supplies its versions of the HSD transmission system to Ford for use as the "Powersplit" e-CVT in the Ford Escape hybrid[42] and Ford Fusion Hybrid.[43]
Nissan licensed Toyota's HSD for use in the Nissan Altima hybrid, using the same Aisin Seiki T110 transaxle as in the Toyota Camry Hybrid."
My take is Toyota Ford and Nissan eCVT transmissions are very similar in design and operation.