XML 55 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Business Combinations - Subsequent Event (Details)
$ in Millions, ¥ in Billions
3 Months Ended
Apr. 26, 2018
USD ($)
Apr. 26, 2018
CNY (¥)
Sep. 30, 2018
USD ($)
Sep. 30, 2018
CNY (¥)
Lu'An Asset Acquisition | Subsequent Event        
Subsequent Event [Line Items]        
Payments for business combination $ 270 ¥ 1.7    
Lu'An Asset Acquisition | Forecast        
Subsequent Event [Line Items]        
Payments for business combination     $ 230 ¥ 1.5
Air Products Lu'an (Changzhi) Co Ltd | Joint Venture | Subsequent Event        
Subsequent Event [Line Items]        
Ownership interest by Air Products (percent) 60.00%      
Ownership interest by noncontrolling owners (percent) 40.00%      
Contribution of equipment to joint venture $ 300      
Carrying value of plant and equipment $ 1,300