Nicole Kidman opened up about her marriage to Keith Urban on Oprah Winfrey's Oscar special Thursday night.

"Keith is doing very well," Kidman told fellow Aussie Oscar-winner Russell Crowe. "We've been through a lot."

When Crowe began to ask her another question, she interrupted. "Let me finish that because that will be seen as a superficial answer and I don't like to give those," she said.

"We've dug really deep. Three months into our marriage we had to dig really deep. And that's what we are doing. We're in the process of doing that."

"Very courageous of him to just pack up his toothbrush and go into rehab," Crowe said. "He must have you at the very forefront of everything he's thinking."

Replied Kidman: "You'll make me cry now – stop it."

Kidman and Urban, both 39, wed in June. In October, Urban checked into rehab for a three-month stay. He later told Matt Lauer of his relationship with Kidman: "They say grief makes hearts and closer bonds than joy ever can. We've been through a lot, and she's been extraordinary."

Kidman also told Crowe that she'd like to have more kids (she's already mom to Isabella, 14, and Connor, 12, from her marriage to Tom Cruise). "Am I going to have a baby? I hope so," she said.

When Crowe asked, "Are you going to carry a baby?" she replied, "I would hope so."

"I want to see you walking around barefoot and pregnant," Crowe, 42, told her.

"I'd like to see that, too," she replied, smiling.