CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 30, 2016
Current Assets:
Cash and Cash Equivalents	$ 663	$ 401	$ 591	$ 603
Short-term Investments	615	18
Accounts Receivable - Net (Note 11)	1,090	970
Materials and Supplies	283	372
Other Current Assets	133	154
Total Current Assets	2,784	1,915
Properties	44,485	44,324
Accumulated Depreciation	(12,614)	(12,560)
Properties - Net	31,871	31,764
Other Long-term Assets	442	374
Total Assets	36,861	35,739
Current Liabilities:
Accounts Payable	982	847
Labor and Fringe Benefits Payable	517	602
Casualty, Environmental and Other Reserves (Note 4)	110	108
Current Maturities of Long-term Debt (Note 7)	18	19
Income and Other Taxes Payable	166	157
Other Current Liabilities	151	161
Total Current Liabilities	1,944	1,894
Casualty, Environmental and Other Reserves (Note 4)	231	266
Long-term Debt (Note 7)	13,754	11,790
Deferred Income Taxes - Net	6,584	6,418
Other Long-term Liabilities	613	650
Total Liabilities	23,126	21,018
Shareholders' Equity:
Common Stock, $1 Par Value	844	890
Other Capital	129	217
Retained Earnings	13,320	14,084
Accumulated Other Comprehensive Loss (Note 10)	(574)	(486)
Noncontrolling Interest	16	16
Total Shareholders' Equity	13,735	14,721
Total Liabilities and Shareholders' Equity	36,861	35,739
Investments in Conrail
Current Assets:
Investment in Affiliates and Other Companies	941	907
Affiliates and Other Companies
Current Assets:
Investment in Affiliates and Other Companies	$ 823	$ 779