Retirement Benefits Estimated Future Benefit Payments (Details 8) $ in Millions	Dec. 31, 2022 USD ($)
Estimated Benefit Payments (Table Amounts) [Abstract]
2023	$ 2,088
2024	2,142
2025	2,176
2026	2,189
2027	2,215
2028 through 2032	11,191
Pension Benefits
Estimated Benefit Payments (Table Amounts) [Abstract]
2023	1,949
2024	2,001
2025	2,041
2026	2,077
2027	2,108
2028 through 2032	10,717
Medical and Life Benefits
Estimated Benefit Payments (Table Amounts) [Abstract]
2023	139
2024	141
2025	135
2026	112
2027	107
2028 through 2032	$ 474

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ 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 (f)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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