XML 22 R12.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Percentage-of-Completion Contracts | 9 Months Ended
--- | ---
Jun. 30, 2017
Disclosure Percentage Of Completion Contracts Additional Information [Abstract] |
Percentage-of-Completion Contracts | Percentage-of-Completion Contracts The Building Technologies & Solutions business records certain long-term contracts under the percentage-of-completion method of accounting. Under this method, sales and gross profit are recognized as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. The Company records costs and earnings in excess of billings on uncompleted contracts primarily within accounts receivable - net and billings in excess of costs and earnings on uncompleted contracts primarily within other current liabilities in the consolidated statements of financial position. Costs and earnings in excess of billings related to these contracts were $951 million and $841 million at June 30, 2017 and September 30, 2016, respectively. Billings in excess of costs and earnings related to these contracts were $448 million and $431 million at June 30, 2017 and September 30, 2016, respectively.

X
- Definition Disclosure - Percentage of Completion Contracts - Additional Information [Abstract] + References No definition available. + Details
Name: | jci_DisclosurePercentageOfCompletionContractsAdditionalInformationAbstract
Namespace Prefix: | jci_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for long-term contracts or programs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 275 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68065670&loc=d3e54651-109401 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(d)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 405 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68055288&loc=d3e56414-109416 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=68076031&loc=d3e58033-111643 + Details
Name: | us-gaap_LongTermContractsOrProgramsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration