Employee Pension and Other Postretirement Benefits Cash Contributions (Table) (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Defined Benefit Plan Disclosure
Other benefit plans	$ 25	$ 23
Total contributions	236	49
Discretionary Contribution \| Qualified
Defined Benefit Plan Disclosure
Pension contributions	205	21
Discretionary Contribution \| Non-qualified
Defined Benefit Plan Disclosure
Pension contributions	$ 6	$ 5

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Amount of cash outflow for other postretirement benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes pension benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585

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Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree.

+ References

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Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

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