CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net sales
Total net sales	$ 8,200.0	$ 4,363.5	$ 3,881.7
Cost of sales
Total cost of sales	(5,922.0)	(3,129.6)	(2,816.4)
Gross profit	2,278.0	1,233.9	1,065.3
Selling, general and administrative expenses	(1,166.6)	(633.2)	(512.5)
Engineering expenses	(209.9)	(87.5)	(95.2)
Amortization expense	(238.4)	(39.8)	(36.5)
Total operating expenses	(1,614.9)	(760.5)	(644.2)
Income from operations	663.1	473.4	421.1
Other income and expenses
Interest expense, net	(219.1)	(112.2)	(77.9)
Other income, net	2.8	6.4	8.9
Income from operations before income taxes	446.8	367.6	352.1
Income tax expense	(120.3)	(75.9)	(89.8)
Net income	326.5	291.7	262.3
Less: Net loss attributable to noncontrolling interest	0.2	3.2	0.0
Net income attributable to Wabtec shareholders	$ 326.7	$ 294.9	$ 262.3
Basic
Net income attributable to Wabtec shareholders (in dollars per share)	$ 1.91	$ 3.06	$ 2.74
Diluted
Net income attributable to Wabtec shareholders (in dollars per share)	$ 1.84	$ 3.05	$ 2.72
Weighted average shares outstanding
Basic (in shares)	170.5	96.0	95.5
Diluted (in shares)	177.3	96.5	96.1
Product
Net sales
Total net sales	$ 6,907.9	$ 4,178.0	$ 3,685.6
Cost of sales
Total cost of sales	(5,128.4)	(2,973.5)	(2,667.8)
Services
Net sales
Total net sales	1,292.1	185.5	196.1
Cost of sales
Total cost of sales	$ (793.6)	$ (156.1)	$ (148.6)