XML 54 R45.htm IDEA: XBRL DOCUMENT v2.3.0.11

Fair Value Measurements (Narrative) (Details)	Jun. 10, 2010
Fair Value Measurements
Agreements to purchase the remaining shares	25.00%

X

- Definition

Agreements To Purchase The Remaining Shares

+ Details

Name:	apd_AgreementsToPurchaseRemainingShares
Namespace Prefix:	apd
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fair Value Measurements.

+ Details

Name:	apd_FairValueMeasurementsAbstract
Namespace Prefix:	apd
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration