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Equity Method Investments and Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Sep. 02, 2026	Jan. 13, 2026	Mar. 31, 2026	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]
Accounts receivable, net				$ 1,203		$ 1,001
Equity method investments				1,550		551
Additional equity contribution made to joint venture				1,153	$ 54
AMER 3 Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity method investment, amount sold		$ 459
Proceeds from divestiture of interest in joint venture		129
Accounts receivable, net		184
Equity method investments		$ 146		$ 228		0
Gain on sale of equity method investment			$ 19
atNorth Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage				34.00%
Equity method investments				$ 847		$ 0
Additional equity contribution made to joint venture	$ 869
Preferred stock, dividend rate, percentage	12.00%
atNorth Joint Venture \| Common Stock, $0.001
Schedule of Equity Method Investments [Line Items]
Ownership percentage	34.00%
Equity method investments				16
atNorth Joint Venture \| Preferred Stock
Schedule of Equity Method Investments [Line Items]
Ownership percentage	34.00%
Equity method investments				$ 831
Variable Interest Entity, Not Primary Beneficiary \| Various Asset Companies
Schedule of Equity Method Investments [Line Items]
Subsidiary, ownership percentage				23.00%
Variable Interest Entity, Not Primary Beneficiary \| AMER 3 Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage				2.00%