Note 2 - Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions				6 Months Ended
	Jun. 06, 2019	Feb. 28, 2019	Jan. 11, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Cash consideration				$ 6	$ 654
Goodwill				$ 451		$ 493
Prestolite E-Propulsion Systems (Beijing) Limited [Member]
Cash consideration	$ 50
Fair value of previously held equity method investment	45
Total purchase consideration	95
Cash and cash equivalents	2
Accounts receivable - Trade	17
Inventories	9
Goodwill	63
Intangibles	10
Property, plant and equipment	2
Accounts payable	(4)
Other accrued liabilities	(3)
Other noncurrent liabilities	(1)
Total purchase consideration allocation	95
Business Combination, Consideration Transferred, Total	$ 95
Oerlikon Drive Systems [Member]
Cash consideration		$ 626
Total purchase consideration		615
Cash and cash equivalents		76
Accounts receivable - Trade		150
Inventories		190
Goodwill		94
Intangibles		58
Property, plant and equipment		333
Accounts payable		(151)
Other accrued liabilities		(61)
Other noncurrent liabilities		(30)
Total purchase consideration allocation		615
Less purchase consideration to be recovered for indemnified matters		(11)
Accounts receivable - Other		15
Other current assets		16
Deferred tax assets		24
Other noncurrent assets		2
Investments in affiliates		7
Operating lease assets		4
Current portion of long-term debt		(2)
Accrued payroll and employee benefits		(37)
Current portion of operating lease liabilities		(1)
Taxes on income		(5)
Long-term debt		(8)
Pension and postretirement obligations		(49)
Noncurrent operating lease liabilities		(2)
Noncontrolling interests		(8)
Business Combination, Consideration Transferred, Total		$ 615
S.M.E. S.p.A. [Member]
Cash consideration			$ 62
Total purchase consideration			88
Accounts receivable - Trade			4
Inventories			8
Goodwill			68
Intangibles			24
Property, plant and equipment			5
Accounts payable			(6)
Other accrued liabilities			(1)
Other noncurrent liabilities			(6)
Accounts receivable - Other			1
Accrued payroll and employee benefits			(1)
Business Combination, Consideration Transferred, Total			88
Short-term debt			(8)
Total purchase consideration allocation			$ 88