Fair Value Measurements (Narrative) (Details) - Significant Unobservable Inputs (Level 3) [Member] - USD ($) $ in Billions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Fair Value Measurements [Line Items]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)	$ 2.1	$ 2.7
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)	$ 1.3	$ 2.5
Assets [Member] \| Weighted Average [Member] \| Fair Value, Recurring [Member] \| Inventories Component [Member]
Fair Value Measurements [Line Items]
Basis	25.00%	19.40%
Liabilities [Member] \| Weighted Average [Member] \| Fair Value, Recurring [Member] \| Inventories Component [Member]
Fair Value Measurements [Line Items]
Basis	33.20%	15.20%

Adjustment to current market value, based on location, that a market participant is willing to pay, used as an input to measure fair value.

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Fair Value Measurements [Line Items]

+ References

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Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.

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