Supplemental Information (Equity Method Investments) (Details) - LACC, LLC $ in Millions	9 Months Ended
Sep. 30, 2022 USD ($)
Schedule of Equity Method Investments [Line Items]
Ownership interest (percent)	3.20%
Equity Method Investments Activity [Roll Forward]
Beginning balance	$ 943
Cash contributions	87
Additional interest purchased	89
Depreciation and amortization	(32)
Ending balance	$ 1,087

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Value of the investment at close of period. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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Gross additions to the investment in and advance to the affiliate.

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Gross reductions to the investment in and advance to the affiliate.

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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.

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Equity Method Investments Activity

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This element represents the cost of additional investments for under the equity method of accounting.

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