XML 26 R76.htm IDEA: XBRL DOCUMENT v2.4.1.9
Business Segment Information (Reconciliation of Operating Income) (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]    
Business restructuring and cost reduction actions $ (32.4)apd_ReorganizationAndRestructuringActions $ 0apd_ReorganizationAndRestructuringActions
Gain on previously held equity interest 17.9us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain 0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain
Operating income 430.0us-gaap_OperatingIncomeLoss 385.6us-gaap_OperatingIncomeLoss
Segment Total [Member]    
Segment Reporting Information [Line Items]    
Operating income $ 444.5us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember		 $ 385.6us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember