Equity Attributable to Company Stockholders Boeing Company reported the following items on its 2018 form 10-K. Shareholders' Equity ($ millions, except par and shares) 2018 2017 Common stock, par value $5.00 - 1,200,000,000 shares authorized; 1,012,261,159 shares issued $5,061 $5,061 Additional paid-in capital 6,768 6,804 Treasury stock, at cost (52,348) (43,454) Retained earnings 55,941 49,618 Accumulated other comprehensive loss (15,083) (16,373) Total shareholders' equity 339 1,656 Noncontrolling interests 71 57 Total equity $410 $1,713 Which equity number should be used to calculate return on equity for 2018 and for 2017? For each year, enter the amount that should be used for equity to calculate return on equity. 2018 $ million 2017 $ million