Insitu, Wisk Aero and SkyGrid Divestiture (Details) - Discontinued Operations, Held-for-Sale - Insitu, Wisk Aero And SkyGrid - USD ($) $ in Millions	Aug. 09, 2026	Sep. 30, 2026
Disposal Group, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, assets		$ 688
Disposal group, including discontinued operation, liabilities		161
Disposal group, including discontinued operation, intangible assets		203
Disposal group, including discontinued operation, inventory		192
Disposal group, including discontinued operation, goodwill		$ 97
Archer Aviation
Disposal Group, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage	19.75%
Noncash or part noncash divestiture, number of warrants	2
Noncash or part noncash divestiture, number of securities called by warrants or rights	$ 200

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