A late consolation for Al Ain was followed by a late own goal from their midfielder Yahia Nader which ensured that Madrid would take home their third-successive Club World Cup title to the Spanish capital.
In doing so, the LaLiga giants have now claimed a fourth Club World Cup title in the past five years.
Kroos has managed to lift the FIFA World Cup winning trophy in the last three years.
Al Ain started brightly and came close to taking a shock lead when Sweden worldwide striker Marcus Berg could only prod the ball into the gloves of goalkeeper Thibaut Courtois.
The opposition could not mastermind another upset as two long-range strikes from Ballon d'Or victor Luka Modric and Marcos Llorente - his maiden goal - set Real up for the comfortable win.
"It is an unforgettable year for me, a ideal year, winning the Champions League, then Croatia had a spectacular World Cup and then all these prizes arrived, now another trophy with Madrid".
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A man laughs at another man in a Donald Trump costume at the Fans Village in Alexandra Palace on December 16 in London, England. Earlier, he took specific aim at Baldwin's impersonation of him, calling it an "agony for those forced to watch".
Mario Mandzukic's first-half goal gave Juventus a 1-0 win over Roma 1-0 that put them eight points clear of nearest Serie A title rivals Napoli. But the rest of the way Madrid lived up to its elite status and the talent gap was evident between the sides.
Earlier, Copa Libertadores winners River Plate won the third-place play-off by beating Asian champions Kashima Antlers 4-0.
He deserves to not have such speculation around about his job security, and with a few new signings next summer, he could really make Madrid a team that can successfully challenge on all fronts again.
Khalid Issa, Al Ain goalkeeper, said that Al Ain is looking forward to the coming seasons, as its players still aim for more success.