Restructuring - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended				3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended			9 Months Ended		12 Months Ended	3 Months Ended		0 Months Ended	9 Months Ended					9 Months Ended	3 Months Ended		12 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2014 Environmental Remediation [Member]	Jun. 30, 2014 Environmental Remediation [Member]	Mar. 31, 2014 Environmental Remediation [Member]	Sep. 30, 2013 Environmental Remediation [Member]	Jun. 30, 2014 Severance and Employee Benefits [Member]	Jun. 30, 2014 Severance and Employee Benefits [Member]	Mar. 31, 2014 Severance and Employee Benefits [Member]	Sep. 30, 2013 Severance and Employee Benefits [Member]	Jun. 30, 2014 Previous Actions and Sites Pending Sale [Member]	Jun. 30, 2013 Previous Actions and Sites Pending Sale [Member]	Sep. 30, 2009 Previous Actions and Sites Pending Sale [Member]	Jun. 30, 2014 Previous Actions and Sites Pending Sale [Member] Maximum [Member]	Jun. 30, 2013 Previous Actions and Sites Pending Sale [Member] Maximum [Member]	Apr. 26, 2013 Closure of Port Dickson [Member] Employees	Jun. 30, 2014 Closure of Port Dickson [Member]	Jun. 30, 2013 Closure of Port Dickson [Member]	Jun. 30, 2014 Closure of Port Dickson [Member] Environmental Remediation [Member]	Jun. 30, 2014 Closure of Port Dickson [Member] Severance and Employee Benefits [Member]	Jun. 30, 2014 Closure of Port Dickson [Member] Other Closure Charges [Member]	Jun. 30, 2014 Closure of Port Dickson [Member] Severance Costs [Member]	Jun. 30, 2014 Closure of Port Dickson [Member] Maximum [Member]	Jun. 30, 2013 Closure of Port Dickson [Member] Maximum [Member]	Sep. 30, 2014 Closure of Port Dickson [Member] Scenario, Forecast [Member]	Jun. 30, 2014 Restructuring Activities Other [Member]	Jun. 30, 2014 Restructuring Activities Other [Member] Severance Costs [Member]	Jun. 30, 2013 Restructuring Activities Other [Member] Severance Costs [Member]	Jun. 30, 2014 Restructuring Activities Other [Member] Severance Costs [Member]	Jun. 30, 2013 Restructuring Activities Other [Member] Severance Costs [Member]	Sep. 30, 2014 Shared Service Center Transition [Member]	Jun. 30, 2014 Shared Service Center Transition [Member]	Jun. 30, 2014 Shared Service Center Transition [Member]	Jun. 30, 2014 Shared Service Center Transition [Member] Minimum [Member]	Jun. 30, 2014 Shared Service Center Transition [Member] Maximum [Member]	Jun. 30, 2014 Shared Service Center Transition [Member] Remainder of Fiscal 2015 [Member] Minimum [Member]	Jun. 30, 2014 Shared Service Center Transition [Member] Remainder of Fiscal 2015 [Member] Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Pre-tax charge to earnings															$ 163						$ 2	$ 18					$ 1	$ 2	$ 23						$ 5	$ 1	$ 15	$ 22	$ 26	$ 17	$ 21
Cash payments	2		9				0	1			1	5					85									3							16				1
Restructuring costs in accrued expenses	21		21		20	10	2	2	2	2	17	17	16	7	3						1															14	14
Equity share in CMSB																				51.00%
Affected employees																				90
Restructuring charges	4	5	24	29			0	1			2	15			1	2		1	1		20										2	2	6	7
Accelerated depreciation and asset write-offs																					15
Severance charges															67						2								2
Portion of the charges that are allocable to the noncontrolling interest																					49.00%
Site demolition, clearing and environmental remediation costs															10						2								5
Other charges															22						1								1
Restructuring accelerated depreciation and asset impairments															65														15
Expected cumulative net cash outlays related to plan																					8		6	1	1
Expected cash outlays remainder fiscal year																					5										3		3
Additional charges during fiscal 2014 and thereafter																														2
Accrued severance charges																															3		3
Gain on sale of asset															1
Charges during fiscal 2014 and thereafter			$ 2