Spirit Acquisition (Details) $ / shares in Units, $ in Millions			33 Months Ended
	Dec. 31, 2025 USD ($) extension_period $ / shares shares	Apr. 27, 2025 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Business Combination [Line Items]
Business combination, amount due, liability			$ 527
Business combination, liability repayment, year one, adjustment			425
Forecast
Business Combination [Line Items]
Business combination, termination rights, number of three-month extension periods | extension_period	3
Business combination, termination rights, cured duration	30 days
Spirit AeroSystems Holdings, Inc.
Business Combination [Line Items]
Payments to acquire businesses, gross		$ 439
Business combination, maximum financial support amount			1,199
Business combination, financial support amount, not yet drawn			16
Business combination, liability repayment amount			40
Business combination, liability repayment amount, outstanding			1,143
Business combination, supplier notes receivable, net of interest			1,122
Business combination, other assets, current			724	$ 539
Business combination, other assets			398	299
Business combination, inventory advance payment			$ 161	$ 165
Spirit AeroSystems Holdings, Inc. | Forecast
Business Combination [Line Items]
Business combination, consideration transferred	$ 4,700
Business acquisition, share price (in dollars per share) | $ / shares	$ 37.25
Business acquisition, trading day	15 days
Business acquisition, buyer termination fee	$ 300
Spirit AeroSystems Holdings, Inc. | Minimum | Forecast
Business Combination [Line Items]
Business acquisition, exchange ratio	18.00%
Business acquisition, floor price per share (in dollars per share) | $ / shares	$ 149.00
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares	0.25
Spirit AeroSystems Holdings, Inc. | Maximum | Forecast
Business Combination [Line Items]
Business acquisition, exchange ratio	25.00%
Business acquisition, ceiling price per share (in dollars per share) | $ / shares	$ 206.94
Business acquisition, equity interest issued or issuable, number of shares (in shares) | shares	0.18