Change In Defined Benefit Assets caused by funding of annuity.

No definition available.

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- Definition

Change In Defined Benefit liaibilty due to purchase of annuity from Prudential.

+ References

No definition available.

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- References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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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

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.

+ References

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-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(7)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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-Publisher FASB
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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Year ultimate health care cost trend rate is expected to be reached, in CCYY format.

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-Publisher FASB
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- Definition

Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
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Employee Benefit Plans - Benefit Cost Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Percent Amortized Of Unamortized Balance For Net Actuarial Gain And Losses		10.00%
Other Comprehensive Income (Loss), Defined Benefit Plans		$ (51)	$ (39)	$ (147)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement losses		$ 0	$ 0	0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		3.10%	4.05%
U.S. \| Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement losses		$ (62)	$ (196)	(131)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		3.25%	4.25%
U.S. \| Other Postretirement Benefit Plans, Defined Benefit [Member] \| Pre Sixty Five Retiree[Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year		7.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		5.00%
U.S. \| Other Postretirement Benefit Plans, Defined Benefit [Member] \| Post Sixty Five Retiree [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year		4.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		5.00%
U.S. \| Qualified Plan [Member] \| Prudential Benefit Obligation [Member]
Defined Benefit Plan Disclosure [Line Items]
Change In Defined Benefit Assets			$ 730
U.S. \| Qualified Plan [Member] \| Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement losses		$ (62)	(196)	(131)
U.S. \| Qualified Plan [Member] \| Pension Plans Defined Benefit [Member] \| Prudential Benefit Obligation [Member]
Defined Benefit Plan Disclosure [Line Items]
Change In Defined Benefit Obligation			730
Change In Defined Benefit Assets			730
U.S. \| Qualified Plan [Member] \| Other Postretirement Benefit Plans, Defined Benefit [Member] \| Pre Sixty Five Retiree[Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate		2028
U.S. \| Qualified Plan [Member] \| Other Postretirement Benefit Plans, Defined Benefit [Member] \| Post Sixty Five Retiree [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate		2028
Foreign Plan [Member] \| Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement losses		$ 0	$ 0	$ 0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		2.35%	3.05%
Foreign Plan [Member] \| Qualified Plan [Member] \| Pension Plans Defined Benefit [Member] \| Certain United Kingdom Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Change In Defined Benefit Assets	$ 43
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.80%		2.90%