Segment Information (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net sales:
Total net sales	$ 3,184,984	$ 2,847,186	$ 6,159,182	$ 5,449,301
Operating profit:
Total operating profit	264,623	223,542	476,005	404,667
Interest expense, net	(6,236)	(6,693)	(12,736)	(13,426)
Other, net	(16,836)	(16,056)	(29,738)	(28,333)
Income before income taxes	241,551	200,793	433,531	362,908
Automotive [Member]
Net sales:
Total net sales	1,585,074	1,459,672	2,989,939	2,750,073
Operating profit:
Total operating profit	138,795	126,022	236,694	214,927
Industrial [Member]
Net sales:
Total net sales	1,051,258	882,233	2,051,029	1,685,535
Operating profit:
Total operating profit	85,289	60,118	151,298	108,964
Office products [Member]
Net sales:
Total net sales	417,989	401,960	850,655	812,471
Operating profit:
Total operating profit	31,367	30,454	68,771	67,013
Electrical/electronic materials [Member]
Net sales:
Total net sales	136,780	106,579	276,594	206,877
Operating profit:
Total operating profit	9,172	6,948	19,242	13,763
Other [Member]
Net sales:
Total net sales	$ (6,117)	$ (3,258)	$ (9,035)	$ (5,655)