How many steps a day do I need to take to lose 2 pounds a week?

I'm curious to know, what's the ideal number of steps per day one should aim for in order to achieve a weight loss goal of 2 pounds per week? Is there a specific formula or range that takes into account factors like body weight, current activity level, and diet? Additionally, how important is it to incorporate a balanced diet and other forms of exercise, besides walking, to support this goal?