You're wrong. Expedia has no longer Voyages-SNCF.com parts since this "alliance" was condamned by French Autorité de la Concurrence (anti-trust autority).
Nowadays, the only Voyages-SNCF.com shareholder is Groupe SNCF.
I can find references to a fines but nothing about Expedia leaving Voyages-sncf.com capital. Really curious about it, could you point me to some reference ?