The pressure of "having it all" is still alive and well: Many working mothers bear a heavier burden when it comes to balancing their careers and family.

But former Xerox CEO Ursula Burns — who became the first Black female CEO of a Fortune 500 company in 2009 — says she never bought into that narrative. Rather, she says, she relied on her late husband Lloyd Bean to help take care of their two children, missing activities for work while scaling the career ladder. And she credits her career success to the strategy.