Defined Benefit Plan, Assets, Actual Allocations [Abstract]

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- Definition

Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted Average Interest Rates of Cash Balances

+ References

No definition available.

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- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

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- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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- Definition

Amount, before benefit payment, of receipt from prescription drug subsidy which increases benefit obligation of defined benefit postretirement plan.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan.

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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increases plan assets.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement.

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Ultimate trend rate for health care cost for defined benefit postretirement plan.

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Obligations and Funded Status (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Change in fair value of plan assets:
Company contributions	$ 500
Pension
Change in benefit obligation:
Benefit obligation as of January 1		$ 11,050	$ 9,462
Service cost		194	193	$ 224
Interest cost		287	373	372
Plan participants’ contributions		0	0
Plan amendments		9	2
Special termination benefits		0	14
Medicare retiree drug subsidy		0	0
Actuarial loss		1,011	1,535
Benefits paid		(616)	(529)
Benefit obligation as of December 31		11,935	11,050	9,462
Change in fair value of plan assets:
Fair value of plan assets as of January 1		8,395	6,984
Actual return on plan assets		1,165	1,419
Company contributions		24	521
Plan participants’ contributions		0	0
Benefits paid		(616)	(529)
Fair value of plan assets as of December 31		8,968	8,395	6,984
Funded Status:
Funded Status (Net liability as of December 31)		(2,967)	(2,655)
Accumulated benefit obligation		11,376	10,439
Amounts Recognized in AOCI:
Prior service cost (credit)		$ 12	$ 24
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate		2.67%	3.34%
Rate of compensation increase		4.10%	4.10%
Cash balance weighted average interest crediting rate		2.57%	2.57%
Allocation of Plan Assets (as of December 31)
Asset Allocation		100.00%	100.00%
Pension \| Equity securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		23.00%	29.00%
Pension \| Fixed Income
Allocation of Plan Assets (as of December 31)
Asset Allocation		35.00%	36.00%
Pension \| Hedge funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		7.00%	9.00%
Pension \| Insurance-linked securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		4.00%	2.00%
Pension \| Real estate funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		9.00%	7.00%
Pension \| Derivatives
Allocation of Plan Assets (as of December 31)
Asset Allocation		0.00%	0.00%
Pension \| Private equity funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		5.00%	4.00%
Pension \| Cash and short-term securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		17.00%	13.00%
Pension \| Qualified plan
Funded Status:
Funded Status (Net liability as of December 31)		$ (2,500)	$ (2,203)
Pension \| Non-qualified plans
Funded Status:
Funded Status (Net liability as of December 31)		(467)	(452)
OPEB
Change in benefit obligation:
Benefit obligation as of January 1		654	608
Service cost		4	3	5
Interest cost		15	22	25
Plan participants’ contributions		4	4
Plan amendments		0	0
Special termination benefits		0	0
Medicare retiree drug subsidy		1	1
Actuarial loss		41	64
Benefits paid		(43)	(48)
Benefit obligation as of December 31		676	654	608
Change in fair value of plan assets:
Fair value of plan assets as of January 1		458	408
Actual return on plan assets		60	73
Company contributions		23	21
Plan participants’ contributions		4	4
Benefits paid		(43)	(48)
Fair value of plan assets as of December 31		502	458	$ 408
Funded Status:
Funded Status (Net liability as of December 31)		(174)	(196)
Accumulated benefit obligation		0	0
Amounts Recognized in AOCI:
Prior service cost (credit)		$ (39)	$ (85)
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate		2.45%	3.18%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)		4.50%	4.50%
Allocation of Plan Assets (as of December 31)
Asset Allocation		100.00%	100.00%
OPEB \| Equity securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		55.00%	54.00%
OPEB \| Fixed Income
Allocation of Plan Assets (as of December 31)
Asset Allocation		28.00%	30.00%
OPEB \| Hedge funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		0.00%	0.00%
OPEB \| Insurance-linked securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		0.00%	0.00%
OPEB \| Real estate funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		0.00%	0.00%
OPEB \| Private equity funds
Allocation of Plan Assets (as of December 31)
Asset Allocation		0.00%	0.00%
OPEB \| Cash and short-term securities
Allocation of Plan Assets (as of December 31)
Asset Allocation		17.00%	16.00%
OPEB \| Pre Medicare
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Health care cost trend rate assumed (pre/post-Medicare)		6.00%	6.00%
OPEB \| Post Medicare
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Health care cost trend rate assumed (pre/post-Medicare)		5.50%	5.50%
OPEB \| Qualified plan
Funded Status:
Funded Status (Net liability as of December 31)		$ 0	$ 0
OPEB \| Non-qualified plans
Funded Status:
Funded Status (Net liability as of December 31)		$ 0	$ 0