Capital Stock (Rollforward Of Common Stock Activity) (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Class of Stock [Line Items]
Common stock, ending balance	447,200	439,900
Treasury stock, ending balance	10,868	13
Common Stock Issued [Member]
Class of Stock [Line Items]
Common stock, beginning balance	439,894	438,872	438,871
Issuance of stock for various plans, net	7,328	1,022	1
Repurchase of stock, common shares	0	0	0
Common stock, ending balance	447,222	439,894	438,872
Treasury Stock [Member]
Class of Stock [Line Items]
Treasury stock, beginning balance	13	1,921	1,234
Issuance of stock for various plans, net	(533)	(2,994)	(326)
Repurchase of stock, treasury stock	11,388	1,086	1,013
Treasury stock, ending balance	10,868	13	1,921