Retirement Plans (Tables) - Defined Benefit Pension Plans

12 Months Ended

Sep. 30, 2016

Defined benefit plans and other postretirement benefit plans

	U.S. Plans									Non-U.S. Plans
	Fiscal									Fiscal
	2016			2015			2014			2016			2015			2014
	($ in millions)
Service cost	$	9		$	9		$	7		$	48		$	45		$	46
Interest cost		50			48			50			52			58			71
Expected return on plan assets		(59	)		(67	)		(63	)		(68	)		(72	)		(67	)
Amortization of net actuarial loss		40			25			25			36			33			23
Other		—			—			—			(6	)		(5	)		(3	)

Net periodic pension benefit cost	$	40		$	15		$	19		$	62		$	59		$	70


Weighted-average assumptions used to determine net pension benefit cost during the fiscal year:
Discount rate		4.38	%		4.34	%		4.84	%		2.50	%		2.77	%		3.38	%
Expected return on plan assets		6.97	%		7.20	%		7.16	%		5.98	%		6.46	%		5.96	%
Rate of compensation increase		—	%		—	%		—	%		2.81	%		2.86	%		2.84	%

Changes in benefit obligation and plan assets and the net amount recognized on the Consolidated Balance Sheets

	U.S. Plans						Non-U.S. Plans
	Fiscal						Fiscal
	2016			2015			2016			2015
	($ in millions)
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	$	1,170		$	1,143		$	2,188		$	2,276
Service cost		9			9			48			45
Interest cost		50			48			52			58
Actuarial loss		102			42			368			87
Benefits and administrative expenses paid		(81	)		(74	)		(85	)		(71	)
Currency translation		—			—			(63	)		(213	)
Other		—			2			27			6

Benefit obligation at end of fiscal year		1,250			1,170			2,535			2,188

Change in plan assets:
Fair value of plan assets at beginning of fiscal year		879			978			1,167			1,177
Actual return on plan assets		130			(26	)		261			72
Employer contributions		1			1			66			65
Benefits and administrative expenses paid		(81	)		(74	)		(85	)		(71	)
Currency translation		—			—			(59	)		(90	)
Other		—			—			21			14

Fair value of plan assets at end of fiscal year		929			879			1,371			1,167

Funded status	$	(321	)	$	(291	)	$	(1,164	)	$	(1,021	)


Amounts recognized on the Consolidated Balance Sheets:
Accrued and other current liabilities	$	(5	)	$	(5	)	$	(20	)	$	(19	)
Long-term pension and postretirement liabilities		(316	)		(286	)		(1,144	)		(1,002	)

Net amount recognized	$	(321	)	$	(291	)	$	(1,164	)	$	(1,021	)


Weighted-average assumptions used to determine pension benefit obligation at fiscal year end:
Discount rate		3.58	%		4.38	%		1.44	%		2.50	%
Rate of compensation increase		—	%		—	%		2.52	%		2.81	%

Pre-tax amounts recognized in accumulated other comprehensive income (loss) for all U.S. and non-U.S. defined benefit pension plans

	U.S. Plans						Non-U.S. Plans
	Fiscal						Fiscal
	2016			2015			2016			2015
	(in millions)
Change in net loss:
Unrecognized net loss at beginning of fiscal year	$	436		$	325		$	711		$	748
Current year change recorded in accumulated other comprehensive income (loss)		32			136			164			18
Amortization reclassified to earnings		(40	)		(25	)		(36	)		(55	)

Unrecognized net loss at end of fiscal year	$	428		$	436		$	839		$	711


Change in prior service credit:
Unrecognized prior service credit at beginning of fiscal year	$	—		$	—		$	(66	)	$	(67	)
Current year change recorded in accumulated other comprehensive income (loss)		—			—			(10	)		(4	)
Amortization reclassified to earnings(1)		—			—			6			5

Unrecognized prior service credit at end of fiscal year	$	—		$	—		$	(70	)	$	(66	)


(1)	Amortization of prior service credit is included in other in the above table summarizing the components of net periodic pension benefit cost.

Target weighted average asset allocation and weighted average asset allocation for U.S. and non-U.S. pension plans

	U.S. Plans									Non-U.S. Plans
	Target			Fiscal Year End 2016			Fiscal Year End 2015			Target			Fiscal Year End 2016			Fiscal Year End 2015
Asset category:
Equity securities		45	%		45	%		45	%		41	%		41	%		45	%
Debt securities		55			55			55			38			33			29
Insurance contracts and other investments		—			—			—			19			24			24
Real estate investments		—			—			—			2			2			2

Total		100	%		100	%		100	%		100	%		100	%		100	%

Expected future benefit payments

	U.S. Plans		Non-U.S. Plans
	(in millions)
Fiscal 2017	$	73	$	72
Fiscal 2018		70		73
Fiscal 2019		71		76
Fiscal 2020		72		77
Fiscal 2021		74		80
Fiscal 2022-2026		373		458

Accumulated benefit obligation and fair value of plan assets for U.S. and non-U.S. pension plans with accumulated benefit obligations in excess of plan assets

	U.S. Plans				Non-U.S. Plans
	Fiscal Year End				Fiscal Year End
	2016		2015		2016		2015
	(in millions)
Accumulated benefit obligation	$	1,250	$	1,170	$	2,389	$	2,041
Pension plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation		1,250		1,170		2,380		1,994
Fair value of plan assets		929		879		1,361		1,119
Pension plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation		1,250		1,170		2,534		2,188
Fair value of plan assets		929		879		1,371		1,167

Defined benefit pension plans' asset categories and associated fair value

	Fiscal Year End 2016
	U.S. Plans								Non-U.S. Plans
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	(in millions)
Equity:
U.S. equity securities(1)	$	248	$	—	$	—	$	248	$	64	$	—	$	—	$	64
Non-U.S. equity securities(1)		190		—		—		190		62		—		—		62
Commingled equity funds(2)		—		—		—		—		—		456		—		456
Fixed income:
Government bonds(3)		—		67		—		67		—		226		—		226
Corporate bonds(4)		—		397		—		397		—		13		—		13
Commingled bond funds(5)		—		—		—		—		—		262		—		262
Other(6)		—		11		—		11		—		177		91		268

Subtotal	$	438	$	475	$	—		913	$	126	$	1,134	$	91		1,351


Items to reconcile to fair value of plan assets(7)								16								20

Fair value of plan assets							$	929							$	1,371

	Fiscal Year End 2015
	U.S. Plans								Non-U.S. Plans
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	(in millions)
Equity:
U.S. equity securities(1)	$	245	$	—	$	—	$	245	$	60	$	—	$	—	$	60
Non-U.S. equity securities(1)		149		—		—		149		54		—		—		54
Commingled equity funds(2)		—		—		—		—		—		421		—		421
Fixed income:
Government bonds(3)		—		64		—		64		—		202		—		202
Corporate bonds(4)		—		404		—		404		—		13		—		13
Commingled bond funds(5)		—		—		—		—		—		171		—		171
Other(6)		—		3		—		3		—		142		84		226

Subtotal	$	394	$	471	$	—		865	$	114	$	949	$	84		1,147


Items to reconcile to fair value of plan assets(7)								14								20

Fair value of plan assets							$	879							$	1,167


(1)	U.S. and non-U.S. equity securities are valued at the closing price reported on the stock exchange on which the individual securities are traded.
(2)	Commingled equity funds are pooled investments in multiple equity-type securities. Fair value is calculated as the closing price of the underlying investments, an observable market condition, divided by the number of shares of the fund outstanding.
(3)	Government bonds are marked to fair value based on quoted market prices or market approach valuation models using observable market data such as quotes, spreads, and data points for yield curves.
(4)	Corporate bonds are marked to fair value based on quoted market prices or market approach valuation models using observable market data such as quotes, spreads, and data points for yield curves.
(5)	Commingled bond funds are pooled investments in multiple debt-type securities. Fair value is calculated as the closing price of the underlying investments, an observable market condition, divided by the number of shares of the fund outstanding.
(6)	Other investments are composed of insurance contracts, derivatives, short-term investments, structured products such as collateralized obligations and mortgage- and asset-backed securities, real estate investments, and hedge funds. Insurance contracts are valued using cash surrender value, or face value of the contract if a cash surrender value is unavailable (level 2), as these values represent the amount that the plan would receive on termination of the underlying contract. Derivatives, short-term investments, and structured products are marked to fair value using models that are supported by observable market based data (level 2). Real estate investments include investments in commingled real estate funds and are valued at net asset value which is calculated using unobservable inputs that are supported by little or no market activity (level 3). Hedge funds are valued at their net asset value which is calculated using unobservable inputs that are supported by little or no market activity (level 3).
(7)	Items to reconcile to fair value of plan assets include amounts receivable for securities sold, amounts payable for securities purchased, and any cash balances, considered to be carried at book value, that are held in the plans.