Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2014

Compensation And Retirement Disclosure [Abstract]

Net Pension and Other Postretirement Cost

Net pension and postretirement cost included the following components for the three months ended March 31:

	Pension Plans						Other Postretirement Benefits
(millions of dollars)	2014			2013			2014			2013
Service cost	$	18		$	21		$	1		$	1
Interest cost		23			22			2			3
Expected return on plan assets		(31	)		(29	)		—			—
Amortization of prior service credit		(4	)		(3	)		(1	)		—
Amortization of loss		12			19			1			1
Net pension and postretirement cost	$	18		$	29		$	2		$	5

Net pension and postretirement cost included the following components for the six months ended March 31:

	Pension Plans						Other Postretirement Benefits
(millions of dollars)	2014			2013			2014			2013
Service cost	$	35		$	42		$	2		$	3
Interest cost		46			43			5			5
Expected return on plan assets		(62	)		(58	)		—			—
Amortization of prior service credit		(8	)		(7	)		(2	)		(1	)
Amortization of loss		24			38			1			2
Net pension and postretirement cost	$	35		$	58		$	6		$	9