Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 19	$ 22
Accounts and notes receivable, net	168	173
Inventories	62	40
Real estate held for sale	2	3
Deferred income taxes	5	5
Prepaid expenses and other assets	33	32
Total current assets	289	275
Investments in Affiliates	353	347
Real Estate Developments	154	143
Property, at cost	2,962	2,962
Less accumulated depreciation and amortization	1,348	1,328
Property - net	1,614	1,634
Other Assets	164	145
Total	2,574	2,544
Current Liabilities:
Notes payable and current portion of long-term debt	55	52
Accounts payable	147	156
Payroll and vacation benefits	19	20
Uninsured claims	8	8
Accrued and other liabilities	47	42
Total current liabilities	276	278
Long-term Liabilities:
Long-term debt	541	507
Deferred income taxes	419	418
Employee benefit plans	160	168
Uninsured claims and other liabilities	51	50
Total long-term liabilities	1,171	1,143
Shareholders' Equity:
Capital stock	34	34
Additional capital	252	239
Accumulated other comprehensive loss	(90)	(92)
Retained earnings	942	953
Cost of treasury stock	(11)	(11)
Total shareholders' equity	1,127	1,123
Total	$ 2,574	$ 2,544