[["", "2015", "2016", "2017", "2018", "2019", "2020 - 2024"], ["qualified defined benefit pension plans", "$ 2070", "$ 2150", "$ 2230", "$ 2320", "$ 2420", "$ 13430"], ["retiree medical and life insurance plans", "190", "200", "200", "210", "210", "1020"]]