Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (27)	$ 3
Other comprehensive income:
Pension, postretirement and postemployment benefit-related items, net of provision for income taxes of $0 and $1 for the three months ended December 31, 2015 and 2014, respectively	15	17
Cumulative translation adjustment	9	10
Other comprehensive income	24	27
Comprehensive (loss) income	$ (3)	$ 30