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Consolidated Statements of Shareholders' Equity Attributable to Johnson Controls Ordinary Shareholders (Parenthetical) - $ / shares | 12 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash dividends common, per share | $ 1.00 | $ 1.16 | $ 1.04
Retained Earnings |  |  |
Cash dividends common, per share | $ 1.00 | $ 1.16 | $ 1.04

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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