Schedule of Components of Accumulated Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Minority Interest [Line Items]
Balance at December 31, 2017	$ 2,007.6	$ 4,112.3	$ 4,169.4	$ 3,926.4
Total Comprehensive Income:
Net income	118.0	88.2	274.5	358.6
Foreign currency translation	(30.0)	57.9	(134.8)	231.9
Net change in cash flow hedges		(3.9)	1.1	(10.5)
Defined benefit pension plan	0.4	1.3	6.1	3.8
Comprehensive income (loss)	88.4	143.5	146.9	583.8
Common Stock incentives	3.1	5.4	18.9	13.6
Cash dividends declared	(54.1)	(51.8)	(162.5)	(157.4)
Dividends paid to non-controlling interest on subsidiary shares			(2.0)
Distribution of Veoneer	8.4		(2,120.6)
Repurchased shares				(157.0)
Balance at September 30, 2018	2,053.4	4,209.4	2,053.4	4,209.4
Controlling
Minority Interest [Line Items]
Balance at December 31, 2017	1,994.5	3,859.7	4,035.1	3,677.2
Total Comprehensive Income:
Net income	117.5	90.8	281.4	364.5
Foreign currency translation	(29.0)	57.1	(134.1)	224.4
Net change in cash flow hedges		(3.9)	1.1	(10.5)
Defined benefit pension plan	0.4	1.3	6.1	3.8
Comprehensive income (loss)	88.9	145.3	154.5	582.2
Common Stock incentives	3.1	5.4	18.9	13.6
Cash dividends declared	(54.1)	(51.8)	(162.5)	(157.4)
Distribution of Veoneer	8.0		(2,008.9)
Repurchased shares				(157.0)
Balance at September 30, 2018	2,040.4	3,958.6	2,040.4	3,958.6
Noncontrolling Interest
Minority Interest [Line Items]
Balance at December 31, 2017	13.1	252.6	134.3	249.2
Total Comprehensive Income:
Net income	0.5	(2.6)	(6.9)	(5.9)
Foreign currency translation	(1.0)	0.8	(0.7)	7.5
Comprehensive income (loss)	(0.5)	(1.8)	(7.6)	1.6
Dividends paid to non-controlling interest on subsidiary shares			(2.0)
Distribution of Veoneer	0.4		(111.7)
Balance at September 30, 2018	$ 13.0	$ 250.8	13.0	$ 250.8
ASU 2014-09
Total Comprehensive Income:
Adjustment due to adoption of ASC 606			3.3
ASU 2014-09 | Controlling
Total Comprehensive Income:
Adjustment due to adoption of ASC 606			$ 3.3