Postretirement Benefits - Schedule of Net Benefit (Details) employees in Thousands, $ in Millions	3 Months Ended	12 Months Ended
	Jul. 31, 2017 USD ($)	Oct. 31, 2018 USD ($) employees	Oct. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 3,300	$ 4,000
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		$ 105	118	$ 153
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	(21)	(2)
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits	9
Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)		(16)
Fair value of plan assets - Intermediate duration government		48	0
Liability, Defined Benefit Plan, Noncurrent		$ (2,097)	(2,497)
Defined benefit plan, weighted average rate of increase in in per capita cost percent of benefit obligation		7.10%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Assets for Plan Benefits, Defined Benefit Plan		$ 18	16
Defined Benefit Plan, Benefit Obligation		3,344	3,799	4,027
Service cost		(7)	(7)	(9)
Interest on obligations		108	107	118
Amortization of cumulative loss		106	116	104
Amortization of cumulative loss		0	0	0
Contractual termination benefits		0	10	3
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		0	0	0
Premiums on pension insurance		3	15	15
Expected return on assets		(161)	(157)	(167)
Net postretirement benefits expense		72	121	82
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(251)	(18)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		9	23	0
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits		0	10
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		0	2
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		(8)	17
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)		(286)	(297)
Fair Value of Plan Assets		2,162	2,363	2,310
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		2,144	2,346
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		(30)	256
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement		25	52
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)		(8)	18
Defined Benefit Plan, Plan Assets, Contributions by Employer		132	112
Defined Benefit Plan Change In Fair Value Of Plan Assets Benefits Paid		(270)	(281)
Defined Benefit Plan, Funded (Unfunded) Status of Plan		(1,182)	(1,436)
Liability, Defined Benefit Plan, Current		(17)	(16)
Liability, Defined Benefit Plan, Noncurrent		(1,183)	(1,436)
Liability, Defined Benefit Plan		(1,182)	(1,436)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax		2,007	2,183
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		2,007	2,183
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		(61)	(116)	313
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		(106)	(116)	(104)
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, Settlement, After Tax		9	23	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax		0	2	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Currancy Translation Adjustment, before Tax		0	0	(1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		(176)	(257)	208
Net postretirement benefit expense (income) and other comprehensive loss (income)		$ (104)	(136)	290
Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year		14.40%
Assets for Plan Benefits, Defined Benefit Plan		$ 0	0
Defined Benefit Plan, Benefit Obligation		1,245	1,435	1,708
Service cost		(4)	(5)	(5)
Interest on obligations		43	47	58
Amortization of cumulative loss		9	22	31
Amortization of cumulative loss		0	0	(1)
Contractual termination benefits		0	4	4
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment		0	(58)	0
Premiums on pension insurance		0	0	0
Expected return on assets		(23)	(23)	(26)
Net postretirement benefits expense		33	(3)	71
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)		(159)	(183)
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	0	4
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		0	58
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		0	0
Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31)		40	36
Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received (Deprecated 2017-01-31)		42	42
Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)		(160)	(166)
Fair Value of Plan Assets		297	333	333
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		297	333
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		4	38
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, Contributions by Employer		1	2
Defined Benefit Plan Change In Fair Value Of Plan Assets Benefits Paid		(41)	(40)
Defined Benefit Plan, Funded (Unfunded) Status of Plan		(948)	(1,102)
Liability, Defined Benefit Plan, Current		(34)	(41)
Liability, Defined Benefit Plan, Noncurrent		(914)	(1,061)
Liability, Defined Benefit Plan		(948)	(1,102)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax		104	252
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		104	252
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		(139)	(197)	(115)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		(9)	(22)	(31)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax		0	0	1
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), Pension and Other Postretirement Benefit Plans, Currancy Translation Adjustment, before Tax		0	0	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		(148)	(219)	(145)
Net postretirement benefit expense (income) and other comprehensive loss (income)		$ (115)	(222)	$ (74)
Defined benefit plan, weighted average rate of increase in in per capita cost percent of benefit obligation		92.00%
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		$ 503
Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		861	983
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		138	160
Fair Value, Inputs, Level 2 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		973	1,099
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		78	99
Fair Value, Inputs, Level 3 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		310	263
Defined Benefit Plan, Fair Value of Plan Assets Excluding Receivables		0	1
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		81	74
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		77	86
Cash and Cash Equivalents [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		11	6
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		77	86
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		11	6
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		156	20
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		156	20
Fair value of plan assets - Intermediate duration government		48	0
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	62
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	62
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	8
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	8
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		293	316
U.S. Equity [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		59	71
U.S. Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		293	316
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		59	71
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		16	19
Canadian Equity Other [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		16	19
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		270	327
International Equity Other [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		59	74
International Equity Other [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		270	327
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		59	74
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		205	235
Global Equity [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		205	235
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		283	508
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		283	508
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		157	214
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		157	214
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		194	213
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		194	213
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		135	144
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		135	144
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		9	10
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		9	10
Commodities Investment [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		45	0
Commodities Investment [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	9
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	9
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		45	0
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		202	210
Hedge Funds [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		39	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		202	210
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		39	39
Private Equity Funds [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		32	43
Private Equity Funds [Member] | Health and Life Insurance Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		8	11
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		32	43
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		8	11
Private Credit [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		22	0
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		22	0
Real Estate [Member] | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0	1
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	1
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		$ 0	$ 0