City won their fourth trophy of the year when they beat Sevilla on penalties to lift the UEFA Super Cup on Wednesday following a 1-1 draw in regulation time.
The European champions had to do things the hard way, with Cole Palmer's second half header cancelling out Youssef En-Nesyri's first half opener for the Spaniards.
City have now also won the UEFA Champions League, FA Cup and Premier League this season.
They will be representing Europe when the FIFA Club World Cup comes around in Saudi Arabia in December and Guardiola is already aiming for another victory in that competition.
“Of course we are not in the best, best moment, I would say,” Guardiola said after winning his fourth Super Cup as a coach.
“But knowing a little bit the players and the mentality of the backroom staff, I had a feeling that we will try.
“We are really pleased to have already one title in this season. Really pleased for the club – this title we didn’t have and now we have it.
“We miss just one to finish all circle and be able for this club to win all the titles we can have. It’s happening in December, when we go to Saudi Arabia to play there, the (Club) World Cup.
“I would say really, really pleased. A tight game like happened in the (Champions League) final against Inter, a tight game that we lost in the last minute against Arsenal (in the Community Shield). Football in these stages, in that moment, in that period is a coin (flip).”
