Company pension investments which are categorized as level three assets percentage.

No definition available.

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- Definition

Expected annual standard deviation in returns of the target portfolio which reflects both the equity allocation and the diversification benefits among the asset classes in which the portfolio invests.

+ References

No definition available.

+ Details

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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

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

+ References

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- Definition

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.

+ References

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- Definition

Percentage of target 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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- Definition

Amount of cost for defined contribution plan.

+ References

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Pension and Other Postretirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		$ 17,200	$ 24,900
Employer contributions to defined contribution savings plans		$ 175	$ 158	$ 158
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Percentage of Company's pension investments categorized as level 3 assets		4.00%	4.00%
Pension Benefits \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 765	$ 943
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		947	1,292	$ 1,221
Expected contributions to the pension plans and other postretirement benefit plans during next fiscal year		20
Other Postretirement Benefits \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 0	$ 0
United States
Defined Benefit Plan Disclosure [Line Items]
Expected annual standard deviation in returns of the target portfolio which reflects both the equity allocation and the diversification benefits among the asset classes in which the portfolio invests		10.00%
Expected rate of return on plan assets		6.70%	6.70%	7.30%
United States \| Forecast
Defined Benefit Plan Disclosure [Line Items]
Expected rate of return on plan assets	7.00%
United States \| U.S. equities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		25.00%
United States \| U.S. equities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		40.00%
United States \| International equities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		10.00%
United States \| International equities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		20.00%
United States \| Fixed Income Investments \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		35.00%
United States \| Fixed Income Investments \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		45.00%
United States \| Cash And Other Investments \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation		8.00%
United States \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		$ 9,700	$ 13,800
Fair value of plan assets		9,094	13,067	$ 12,672
Expected contributions to the pension plans and other postretirement benefit plans during next fiscal year		270
United States \| Pension Benefits \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		4	6	7
International \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		8,473	$ 12,195	$ 12,009
Expected contributions to the pension plans and other postretirement benefit plans during next fiscal year		$ 150
Expected rate of return on plan assets		3.70%	3.80%	4.40%
International \| Pension Benefits \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 761	$ 937	$ 935