Kidman gave birth to her first child with husband, country singer Keith Urban, last week, however, no photos of the newborn have been published yet.
Celebrities are often paid handsomely by magazines for the right to be the first to publish the stars' baby pictures.
The New York Post said Angelina Jolie and Brad Pitt have been offered more than $11 million for photos of their newborn twins, Knox and Vivienne, who were born in France last weekend.
Jolie and Pitt, who were reportedly paid $4 million for photos of their 2-year-old daughter, Shiloh, donated the money to charity. The couple reportedly has not made a deal yet regarding the twins' photos.
An editor at a celebrity weekly told the Post, "(Kidman) wanted $3 million and we weren't going to pay that."
But Kidman's representative told the newspaper, "A number of publications called to offer money, but she never considered it."