He revealed that during the course of the innings, they were thinking that 250 would be a good target to aim for, so he was delighted that they crossed the 300-run mark.
"There were talks of 250 at one point and even Hash (Amla) said when he came off that he never thought we would get to 300-plus," de Villiers said
"I thought it was a great batting performance today, it was set up by the man himself with Quinton (de Kock) and Faf (du Plessis) batting around him.
Hashim Amla & Quinton de Kock
Opening stands: 14
152 v India, Johannesburg, 2013
194 v India, Durban, 2013
118 v Sri Lanka, Hambantota, 2014
109 v Zimbabwe, Bulawayo, 2014
"It shows you that we are quite dangerous with wickets in hand in the last 10 to 15 overs, it was an exceptional batting performance."
South Africa then sealed victory by bowling Zimbabwe out for 216 and de Villiers was pleased with how they maintained a good standard in the field.
"I thought we were good in the field as well," he said.
"It’s easy to go into a situation where you lose your energy and focus, especially after the first 15 overs where we started well.
"I thought the boys stuck to their guns quite well, we kept taking wickets and stuck to our skills, it was all-round a good 100 overs for us."
Meanwhile, the Amla-de Kock partnership at the top of the order is paying rich dividends for South Africa with four century stands in the last seven ODIs including 109 runs in this game.
"I think we complement each other quite well," man of the match Amla said.
"He's a fun batsman to bat with and, often if he gets to a good start, I am able to play my natural game."
The second match in the three-game series is tomorrow (19th August).
© Cricket World 2014