Tim Cook, the man who replaced Steve Jobs as the head of Apple, revealed in a recent interview that he plans on giving away his entire fortune, which is estimated will be close to $1 billion, to charity when he dies.

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Cook disclosed the plan in an interview he gave to Fortune for a profile in the money magazine's April issue. The piece, which you can read here, details Cook's success as CEO since taking over after Jobs' death in 2011. Cook, who is described both by others and himself as a strongly private person, opens up about his decision to come out as gay (he's the only publicly gay CEO of such a large company), as well as his vocal support on hot-button political topics like fighting AIDS and immigration reform.

The piece drops quite a bit of revelations, but the two biggies are: Cook offered to donate a piece of his healthy liver to Steve Jobs before the Apple founder died -- Jobs refused. Also, Cook plans on donating his vast, and growing, fortune upon his death.

The article's author, Adam Lashinsky, details Cook's designs for his financial estate.

 He plans to give away all his wealth, after providing for the college education of his 10-year-old nephew. There should be plenty left over to fund philanthropic projects. Cook's net worth, based on his holdings of Apple stock, is currently about $120 million. He also holds restricted stock worth $665 million if it were to be fully vested. Cook says that he has already begun donating money quietly, but that he plans to take time to develop a systematic approach to philanthropy rather than simply writing checks.

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Cook joins a growing legion of famed millionaires and billionaires who have vowed to pass on their money to causes and charity after shuffling off this mortal coil, including Warren Buffett, Mark Zuckerberg and Michael Bloomberg.

Tags: tim cook Charity apple