Postretirement Benefits (Tables)

12 Months Ended

Oct. 31, 2013

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

A summary of the changes in benefit obligations and plan assets is as follows:

	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2013			2012			2013			2012
Change in benefit obligations
Benefit obligations at beginning of year	$	4,492		$	4,171		$	1,866		$	2,000
Amendments	3			—			—			—
Service cost	20			17			7			7
Interest on obligations	143			169			62			83
Actuarial loss (gain)	(334		)	462			(142		)	(72		)
Curtailments	(33		)	4			—			—
Contractual termination benefits	—			2			—			(3		)
Retrospective payments due to retirees	—			—			—			(2		)
Currency translation	(15		)	(5		)	—			—
Plan participants' contributions	—			—			28			20
Subsidy receipts	—			—			41			20
Benefits paid	(333		)	(328		)	(188		)	(187		)
Benefit obligations at end of year	$	3,943		$	4,492		$	1,674		$	1,866
Change in plan assets
Fair value of plan assets at beginning of year	$	2,411		$	2,392		$	437		$	463
Actual return on plan assets	284			186			66			27
Currency translation	(22		)	(9		)	—			—
Employer contributions	165			157			3			19
Benefits paid	(319		)	(315		)	(59		)	(72		)
Fair value of plan assets at end of year	$	2,519		$	2,411		$	447		$	437
Funded status at year end	$	(1,424	)	$	(2,081	)	$	(1,227	)	$	(1,429	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2013			2012			2013			2012
Amounts recognized in our Consolidated Balance Sheets consist of:
Current liability	$	(14	)	$	(14	)	$	(73	)	$	(92	)
Noncurrent liability	(1,410		)	(2,067		)	(1,154		)	(1,337		)
Net liability recognized	$	(1,424	)	$	(2,081	)	$	(1,227	)	$	(1,429	)
Amounts recognized in our accumulated other comprehensive loss consist of:
Net actuarial loss	$	1,947		$	2,529		$	354		$	558
Net prior service cost (benefit)	1			3			(10		)	(13		)
Net amount recognized	$	1,948		$	2,532		$	344		$	545

Components Of Postretirement Benefits Income Expense Included in Statement Of Operations [Table Text Block]

The components of our postretirement benefits expense included in our Consolidated Statements of Operations for the years ended October 31 consist of the following:

(in millions)	2013		2012		2011
Pension expense	$	116	$	122	$	139
Health and life insurance expense	61		81		30
Total postretirement benefits expense	$	177	$	203	$	169

Schedule of Net Benefit Costs [Table Text Block]

Net postretirement benefits expense included in our Consolidated Statements of Operations, and other amounts recognized in our Consolidated Statements of Stockholders' Equity (Deficit), for the years ended October 31 is comprised of the following:

	Pension Benefits									Health and Life Insurance Benefits
(in millions)	2013			2012			2011			2013			2012			2011
Service cost for benefits earned during the period	$	20		$	17		17			$	7		$	7		$	8
Interest on obligation	143			169			189			62			83			56
Amortization of cumulative loss	128			112			97			29			38			4
Amortization of prior service cost (benefit)	1			1			1			(4		)	(5		)	(29		)
Curtailments	4			5			2			—			(3		)	11
Contractual termination benefits	—			2			38			—			(2		)	6
Retrospective payments to retirees	—			—			—			—			(2		)	15
Premiums on pension insurance	9			8			6			—			—			—
Expected return on assets	(189		)	(192		)	(211		)	(33		)	(35		)	(41		)
Net postretirement benefits expense	$	116		$	122		$	139		$	61		$	81		$	30
Other Changes in plan assets and benefit obligations recognized in other comprehensive loss (income)
Actuarial net loss (gain)	$	(422	)	$	469		$	374		$	(175	)	$	(58	)	$	566
Amortization of cumulative loss	(128		)	(112		)	(97		)	(29		)	(38		)	(4		)
Prior service cost (benefit)	(1		)	(1		)	—			—			—			302
Amortization of prior service benefit (cost)	(1		)	(1		)	(1		)	4			5			29
Curtailments	(33		)	—			(13		)	—			3			—
Currency translation	—			2			4			—			—			—
Total recognized in other comprehensive loss (income)	$	(585	)	$	357		$	267		$	(200	)	$	(88	)	$	893
Total net postretirement benefits expense and other comprehensive loss (income)	$	(469	)	$	479		$	406		$	(139	)	$	(7	)	$	923

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

The estimated amounts for the defined benefit pension plans and the other postretirement benefit plans that will be amortized from AOCL into net periodic benefit expense over the next fiscal year are as follows:

(in millions)	Pension Benefits		Health and Life Insurance Benefits
Amortization of prior service cost (benefit)	$	—	$	(4	)
Amortization of cumulative losses	94		16

	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2013			2012			2013			2012
Amounts recognized in our Consolidated Balance Sheets consist of:
Current liability	$	(14	)	$	(14	)	$	(73	)	$	(92	)
Noncurrent liability	(1,410		)	(2,067		)	(1,154		)	(1,337		)
Net liability recognized	$	(1,424	)	$	(2,081	)	$	(1,227	)	$	(1,429	)
Amounts recognized in our accumulated other comprehensive loss consist of:
Net actuarial loss	$	1,947		$	2,529		$	354		$	558
Net prior service cost (benefit)	1			3			(10		)	(13		)
Net amount recognized	$	1,948		$	2,532		$	344		$	545

Schedule of Assumptions Used [Table Text Block]

The weighted average rate assumptions used in determining benefit obligations for the years ended October 31, 2013 and 2012 were:

	Pension Benefits				Health and Life Insurance Benefits
	2013		2012		2013		2012
Discount rate used to determine present value of benefit obligation at end of year	4.1	%	3.2	%	4.1	%	3.4	%
Expected rate of increase in future compensation levels	3.5	%	3.5	%	—		—

The weighted average rate assumptions used in determining net postretirement benefits expense for 2013, 2012, and 2011 were:

	Pension Benefits						Health and Life  Insurance Benefits
	2013		2012		2011		2013		2012		2011
Discount rate(A)	3.2	%	4.1	%	4.8	%	3.4	%	4.2	%	4.6	%
Expected long-term rate of return on plan assets	8.0	%	8.3	%	8.5	%	8.0	%	8.3	%	8.5	%
Expected rate of increase in future compensation levels	3.5	%	3.5	%	3.5	%	—		—		—

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(A) In 2012 for pension benefits, the weighted average discount rate used to compute the expense for the period of November 1, 2011 through July 31, 2012 was 4.2%. Due to plan remeasurements at July 31, 2012 at a rate of 3.3%, the weighted average discount rate for the full fiscal year 2012 was 4.1%.

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

The effect of changing the health care cost trend rate by one-percentage point for each future year is as follows:

(in millions)	One-Percentage Point Increase		One-Percentage Point Decrease
Effect on total of service and interest cost components	$	8	$	(8	)
Effect on postretirement benefit obligation	182		(153		)

Schedule of Expected Benefit Payments [Table Text Block]

The expected future benefit payments for the years ending October 31, 2014 through 2018 and the five years ending October 31, 2023 are estimated as follows:

(in millions)	Pension Benefit Payments		Other Postretirement Benefit Payments(A)
2014	$	321	$	126
2015	313		135
2016	305		128
2017	297		120
2018	289		115
2019 through 2023	1,326		532

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(A) Payments are net of expected participant contributions and expected federal subsidy receipts.

Pension Plan, Defined Benefit [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

Information for pension plans with accumulated benefit obligations in excess of plan assets were as follows:

(in millions)	2013		2012
Projected benefit obligations	$	3,943	$	4,492
Accumulated benefit obligations	3,933		4,431
Fair value of plan assets	2,519		2,411

Schedule of Allocation of Plan Assets [Table Text Block]

The fair value of the pension and other postretirement benefit plan assets by category is summarized below:

Pension Assets

	2013										2012
(in millions)	Level 1		Level 2		Level 3			Total			Level 1		Level 2		Level 3		Total
Asset Category
Cash and Cash Equivalents	$	107	$	—	$	—		$	107		$	85	$	—	$	—	$	85
Equity
U.S. Large Cap	207		—		—			207			463		—		—		463
U.S. Small-Mid Cap	350		—		—			350			271		—		—		271
Canadian	93		—		—			93			108		—		—		108
International	254		—		—			254			186		—		—		186
Emerging Markets	105		—		—			105			101		—		—		101
Equity derivative	—		—		(72		)	(72		)	—		—		4		4
Fixed Income
Corporate Bonds	—		494		—			494			—		136		—		136
Government Bonds	—		147		—			147			—		547		—		547
Asset Backed Securities	—		8		—			8			—		9		—		9
Mortgage Backed Securities	—		—		—			—			—		1		—		1
Fixed income derivative	—		—		(13		)	(13		)	—		—		19		19
Collective Trusts and Other
Common and Preferred Stock	—		583		—			583			—		244		—		244
Commodities	—		68		—			68			—		66		—		66
Hedge Funds	—		—		101			101			—		—		92		92
Private Equity	—		—		103			103			—		—		92		92
Exchange Traded Funds	6		—		—			6			—		—		—		—
Mutual Funds	32		—		—			32			36		—		—		36
Real Estate	—		—		1			1			—		—		1		1
Total(A)	$	1,154	$	1,300	$	120		$	2,574		$	1,250	$	1,003	$	208	$	2,461

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(A) For both October 31, 2013 and 2012, the totals exclude $8 million of receivables, which are included in the change in plan assets table. In addition, the table above includes the fair value of Canadian pension assets translated at the exchange rates as of October 31, 2013 and 2012, respectively, while the change in plan asset table includes the fair value of Canadian pension assets translated at historical foreign currency rates.

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

The table below presents the changes for those financial instruments classified within Level 3 of the valuation hierarchy for pension assets for the years ended October 31, 2013 and 2012:

(in millions)	Hedge Funds			Private Equity			Real Estate		Fixed Income Derivative			Equity Derivatives
Balance at November 1, 2011	$	99		$	75		$	1	$	—		$	—
Unrealized gains (losses)	(1		)	10			—		19			4
Realized gains	4			—			—		—			—
Purchases, issuances, and settlements	(10		)	7			—		—			—
Balance at October 31, 2012	$	92		$	92		$	1	$	19		$	4
Unrealized gains (losses)	8			18			—		(32		)	(90		)
Realized gains (losses)	1			—			—		4			10
Purchases, issuances, and settlements	—			(7		)	—		(4		)	4
Balance at October 31, 2013	$	101		$	103		$	1	$	(13	)	$	(72	)

Other Postretirement Benefit Plan, Defined Benefit [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Allocation of Plan Assets [Table Text Block]

Other Postretirement Benefits

	2013								2012
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Asset Category
Cash and Cash Equivalents	$	32	$	—	$	—	$	32	$	31	$	—	$	—	$	31
Equity
U.S. Large Cap	28		—		—		28		82		—		—		82
U.S. Small-Mid Cap	69		—		—		69		64		—		—		64
Emerging Markets	22		—		—		22		22		—		—		22
International	65		—		—		65		63		—		—		63
Fixed Income
Corporate Bonds	—		52		—		52		—		49		—		49
Government Bonds	—		43		—		43		—		66		—		66
Asset Backed Securities	—		4		—		4		—		4		—		4
Mortgage Backed Securities	—		—		—		—		—		—		—		—
Collective Trusts and Other
Common Stock	—		71		—		71		—		—		—		—
Commodities	—		13		—		13		—		13		—		13
Hedge Funds	—		—		21		21		—		—		19		19
Private Equity	—		—		26		26		—		—		23		23
Total(A)	$	216	$	183	$	47	$	446	$	262	$	132	$	42	$	436

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(A) For both October 31, 2013 and 2012, the totals exclude $1 million of receivables, which are included in the change in plan asset table.

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

The table below presents the changes for those financial instruments classified within Level 3 of the valuation hierarchy for other postretirement benefit assets for the years ended October 31, 2013 and 2012:

(in millions)	Hedge Funds			Private Equity
Balance at November 1, 2011	$	25		$	19
Unrealized gains (losses)	(2		)	2
Realized gains	2			—
Purchases, issuances, and settlements	(6		)	2
Balance at October 31, 2012	$	19		$	23
Unrealized gains (losses)	2			5
Realized gains	—			—
Purchases, issuances, and settlements	—			(2		)
Balance at October 31, 2013	$	21		$	26