Exhibit 12.1

COMPUTATION OF CONSOLIDATED RATIO OF EARNINGS TO FIXED CHARGES

	Six Months Ended				Fiscal Year Ended
	31-Mar-17		31-Mar-16		30-Sep-16		30-Sep-15		30-Sep-14		30-Sep-13		30-Sep-12
	(In millions, except for ratio)
Consolidated ratio of earnings to fixed charges	1.9		1.4		1.4		0.5		4.0		4.7		0.947
Earnings:
Income from operations	128		13		22		(258	)	257		312		(31	)
Add:
Fixed charges	154		161		345		467		90		92		94
Amortization of capitalized interest	11		8		31		24		2		2		2
Distributed income of equity investees	40		83		149		158		24		31		26
Less:
Capitalized interest	(12	)	(1	)	(10	)	(88	)	(7	)	(2	)	(0	)
Noncontrolling interest	(32	)	(45	)	(67	)	(84	)	(3	)	(4	)	(2	)
Total Earnings	289		219		470		219		363		431		89
Fixed Charges:
Interest expense	115		122		258		300		41		45		47
Capitalized interest	12		1		10		88		7		2		0
Interest component of rent expense	27		38		77		79		42		45		47
Total Fixed Charges	154		161		345		467		90		92		94