Segment Data - Net Sales by Geographical Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 18,735,073	$ 16,308,801	$ 15,339,713
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	15,681,013	14,890,315	14,255,934
Australasia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,193,148	1,162,122	1,083,779
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,860,912	256,364	0
Automotive [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	7,472,460	7,164,831	6,956,628
Industrial [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	6,298,584	5,805,012	5,399,416
Business Products [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,909,969	$ 1,920,472	$ 1,899,890