analyzing and interpreting income tax disclosures the income tax footnote to the 2018 financial statements for boeing follows. the components of income before tax were: years ended december 31 ($ millions) 2018 2017 2016 u.s. $11,724 $10,143 $5,655 non-u.s. 460 469 417 total $12,184 $10,612 $6,072 income tax expense/(benefit) consisted of the following: