Note 6 - Stockholders' Equity - Changes in Each Component of Accumulated Other Comprehensive Income (AOCI) of the Parent (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Balance		$ 899	$ 1,396
Currency translation adjustments realized in Off-Highway business divestiture		179	2
Balance		2,014	1,446
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(932)	(977)
Currency translation adjustments		4	14
Currency translation adjustments realized in Off-Highway business divestiture		177
Other comprehensive income (loss)		181	14
Balance		(751)	(963)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance		19	(29)
Holding gains and losses		12	(11)
Reclassification of amount to net income	[1]	(17)	34
Tax expense		1	(5)
Other comprehensive income (loss)		(4)	18
Balance		15	(11)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance		(119)	(136)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost	[2]	(1)
Other comprehensive income (loss)		(1)	0
Balance		(120)	(136)
AOCI Attributable to Parent [Member]
Balance		(1,032)	(1,142)
Currency translation adjustments		4	14
Currency translation adjustments realized in Off-Highway business divestiture		177
Holding gains and losses		12	(11)
Reclassification of amount to net income	[1]	(17)	34
Reclassification adjustment for net actuarial losses included in net periodic benefit cost	[2]	(1)
Tax expense		1	(5)
Other comprehensive income (loss)		176	32
Balance		$ (856)	$ (1,110)

[1] Realized gains and losses from currency-related forward contracts associated with forecasted transactions or from other derivative instruments treated as cash flow hedges are reclassified from AOCI into the same line item in the consolidated statement of operations in which the underlying forecasted transaction or other hedged item is recorded. See Note 11 for additional details.

[2] See Note 9 for additional details.