Employee Benefit Plans - Defined Benefit Pension Plans Weighted-Average Asset Allocations (Detail)	Sep. 30, 2013	Sep. 30, 2012
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	63.00%	62.00%
Debt securities	37.00%	38.00%
Total	100.00%	100.00%
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	41.00%	39.00%
Debt securities	54.00%	56.00%
Cash and other securities	5.00%	5.00%
Total	100.00%	100.00%