Consolidated Balance Sheets (Parenthetical) - $ / shares |
Apr. 30, 2019 |
Apr. 30, 2018 |
---|---|---|
Treasury stock, shares | 7,360,000 | 3,531,000 |
Common stock, shares issued | 484,532,000 | 484,532,000 |
Common stock, Class A, voting [Member] | ||
Common stock, par value | $ 0.15 | $ 0.15 |
Common stock, shares authorized | 170,000,000 | 170,000,000 |
Common stock, shares issued | 170,000,000 | 170,000,000 |
Common Stock, Class B, nonvoting [Member] | ||
Common stock, par value | $ 0.15 | $ 0.15 |
Common stock, shares authorized | 400,000,000 | 400,000,000 |
Common stock, shares issued | 314,532,000 | 314,532,000 |