Postretirement Benefits - Schedule of Net Benefit (Details) employees in Thousands, $ in Millions	3 Months Ended	12 Months Ended
	Jul. 31, 2018 USD ($)	Oct. 31, 2019 USD ($) employees	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 3,300
Number Of Former Employees And Their Beneficiaries Included In Retiree Population | employees		30
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	$ 10
Net postretirement benefits expense		$ 263	$ 105	$ 118
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	(21)	(11)	(2)
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits	9
Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)		(17)	(16)
Fair value of plan assets - Intermediate duration government		79	48
Liability, Defined Benefit Plan, Noncurrent		$ (2,103)	(2,097)
Defined benefit plan, weighted average rate of increase in in per capita cost percent of benefit obligation		14.40%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		$ 140
Assets for Plan Benefits, Defined Benefit Plan		3	18
Defined Benefit Plan, Benefit Obligation		3,347	3,344	3,799
Service cost		(7)	(7)	(7)
Interest on obligations		121	108	107
Amortization of cumulative loss		94	106	116
Contractual termination benefits		0	0	10
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		0	0	0
Premiums on pension insurance		10	3	15
Expected return on assets		(143)	(161)	(157)
Net postretirement benefits expense		232	72	121
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		405	(251)
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment		(4)	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		143	9	23
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		(5)	(8)
Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31)		0	0
Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received (Deprecated 2017-01-31)		0	0
Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)		(266)	(286)
Fair Value of Plan Assets		2,013	2,162	2,363
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		2,011	2,144
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		232	(30)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		263	25
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		(5)	(8)
Defined Benefit Plan, Plan Assets, Contribution by Employer, Net		136	132
Defined Benefit Plan Change In Fair Value Of Plan Assets Benefits Paid		(249)	(270)
Defined Benefit Plan, Funded (Unfunded) Status of Plan		(1,334)	(1,182)
Liability, Defined Benefit Plan, Current		(18)	(17)
Liability, Defined Benefit Plan, Noncurrent		(1,319)	(1,183)
Liability, Defined Benefit Plan		(1,334)	(1,182)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax		2,086	2,007
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax		4	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		2,090	2,007
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		316	(61)	(116)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax		4	0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		(94)	(106)	(116)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement, After Tax		143	9	23
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax		0	0	2
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		83	(176)	(257)
Net postretirement benefit expense (income) and other comprehensive loss (income)		315	(104)	(136)
Defined Benefit Plan, Plan Assets, Contributions by Employer, Return of Plan Assets		4
Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		$ 1
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year		10.10%
Assets for Plan Benefits, Defined Benefit Plan		$ 0	0
Defined Benefit Plan, Benefit Obligation		1,087	1,245	1,435
Service cost		(3)	(4)	(5)
Interest on obligations		49	43	47
Amortization of cumulative loss		(1)	9	22
Contractual termination benefits		0	0	4
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		0	0	(58)
Premiums on pension insurance		0	0	0
Expected return on assets		(20)	(23)	(23)
Net postretirement benefits expense		31	33	(3)
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(138)	(159)
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment		0	0
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		0	0	0
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits	$ 4
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		0	0
Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31)		35	40
Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received (Deprecated 2017-01-31)		37	42
Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)		(144)	(160)
Fair Value of Plan Assets		283	297	333
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		283	297
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		20	4
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		0	0
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		0	0
Defined Benefit Plan, Plan Assets, Contribution by Employer, Net		1	1
Defined Benefit Plan Change In Fair Value Of Plan Assets Benefits Paid		(35)	(41)
Defined Benefit Plan, Funded (Unfunded) Status of Plan		(804)	(948)
Liability, Defined Benefit Plan, Current		(20)	(34)
Liability, Defined Benefit Plan, Noncurrent		(784)	(914)
Liability, Defined Benefit Plan		(804)	(948)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax		(33)	104
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax		0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		(33)	104
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		(138)	(139)	(197)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax		0	0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		1	(9)	(22)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement, After Tax		0	0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax		0	0	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		(137)	(148)	(219)
Net postretirement benefit expense (income) and other comprehensive loss (income)		$ (106)	(115)	$ (222)
Defined benefit plan, weighted average rate of increase in in per capita cost percent of benefit obligation		90.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		5.00%
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Deferred Income Taxes and Other Assets, Noncurrent		$ 464
Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		851	861
Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		132	138
Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		860	973
Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		77	78
Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		300	310
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		0	0
Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		74	81
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		0	0
Cash and Cash Equivalents [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		68	77
Cash and Cash Equivalents [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		8	11
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		68	77
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		8	11
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Government [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		173	156
Government [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Fair value of plan assets - Intermediate duration government		0	0
Government [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		173	156
Fair value of plan assets - Intermediate duration government		79	48
Government [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Fair value of plan assets - Intermediate duration government		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Corporate Bond Securities [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
US Treasury and Government [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
US Treasury and Government [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
US Treasury and Government [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
U.S. Equity [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		281	293
U.S. Equity [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		58	59
U.S. Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		281	293
U.S. Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		58	59
U.S. Equity [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
U.S. Equity [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
U.S. Equity [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
U.S. Equity [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Canadian Equity Other [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	16
Canadian Equity Other [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	16
Canadian Equity Other [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Canadian Equity Other [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
International Equity Other [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		283	270
International Equity Other [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		57	59
International Equity Other [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		283	270
International Equity Other [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		57	59
International Equity Other [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
International Equity Other [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
International Equity Other [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
International Equity Other [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Global Equity [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		219	205
Global Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		219	205
Global Equity [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Global Equity [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Fixed Income, Long Duration Credit [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		296	283
Fixed Income, Long Duration Credit [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Fixed Income, Long Duration Credit [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		296	283
Fixed Income, Long Duration Credit [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Fixed Income, High Yield [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		154	157
Fixed Income, High Yield [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Fixed Income, High Yield [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		154	157
Fixed Income, High Yield [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Fixed Income, Canadian Bond [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		20	194
Fixed Income, Canadian Bond [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Fixed Income, Canadian Bond [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		20	194
Fixed Income, Canadian Bond [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Global Real Estate [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		138	135
Global Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Global Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		138	135
Global Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Global Infrastructure [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	9
Global Infrastructure [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Global Infrastructure [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Global Infrastructure [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	9
Commodities Investment [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		34	45
Commodities Investment [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Commodities Investment [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Commodities Investment [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Commodities Investment [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Commodities Investment [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Commodities Investment [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		34	45
Commodities Investment [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		0	0
Hedge Funds [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		187	202
Hedge Funds [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		37	39
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		187	202
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		37	39
Private Equity Funds [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		23	32
Private Equity Funds [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		5	8
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		23	32
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		5	8
Private Credit [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		47	22
Private Credit [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Credit [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Private Credit [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		47	22
Real Estate [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		9	0
Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	0
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		$ 9	$ 0