Nicole Kidman was married to Tom Cruise for about 10 years. They married on Christmas Eve in 1990 and announced their separation in early 2001, with their divorce finalized later that year. During their marriage, they adopted two children together. Their split was officially attributed to "irreconcilable differences".

Summary:

• Married: December 24, 1990
• Separated: February 2001
• Divorce finalized: 2001
• Duration: Approximately 10 years
• Children: Two adopted children (Isabella and Connor)

This timeline gives a clear duration of their marriage as about a decade.