Goodwill And Other Intangible Assets (Change In Net Carrying Amount Of Goodwill By Segment) (Details) (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011
Beginning balance	$ 1,836,294
Translation	9,654
Ending balance	1,845,948
Steel Mills [Member]
Beginning balance	268,466
Translation
Ending balance	268,466
Steel Products [Member]
Beginning balance	799,060
Translation	9,654
Ending balance	808,714
Raw Materials [Member]
Beginning balance	679,916
Translation
Ending balance	679,916
All Other [Member]
Beginning balance	88,852
Translation
Ending balance	$ 88,852