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Consolidated Statements of Income (Parenthetical) - USD ($)
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Income Statement [Abstract]    
Net tax effect on income (loss) from discontinued operations $ 1,000,000 $ 1,000,000
Net securities gains (losses) (less than for 2016) 1,000,000 (6,000,000)
Impaired losses related to securities $ 0 $ 0