CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and Cash Equivalents	$ 853		$ 858	$ 1,320		$ 401
Short-term Investments	878		253
Accounts Receivable - Net (Note 9)	1,111		1,010
Materials and Supplies	222		263
Other Current Assets	122		181
Total Current Assets	3,186		2,565
Properties	44,756		44,805
Accumulated Depreciation	(12,737)		(12,807)
Properties - Net	32,019		31,998
Right-of-Use Lease Asset (Note 5)	550		0
Other Long-term Assets	347		387
Total Assets	37,924		36,729
Current Liabilities:
Accounts Payable	989		949
Labor and Fringe Benefits Payable	412		550
Casualty, Environmental and Other Reserves (Note 4)	110		113
Current Maturities of Long-term Debt (Note 8)	245		18
Income and Other Taxes Payable	133		106
Other Current Liabilities	164		179
Total Current Liabilities	2,053		1,915
Casualty, Environmental and Other Reserves (Note 4)	199		211
Long-term Debt (Note 8)	15,522		14,739
Deferred Income Taxes - Net	6,791		6,690
Long-term Lease Liability (Note 5)	501		0
Other Long-term Liabilities	568		594
Total Liabilities	25,634		24,149
Shareholders' Equity:
Common Stock, $1 Par Value	798		818
Other Capital	290		249
Retained Earnings	11,843		12,157
Accumulated Other Comprehensive Loss (Note 12)	(655)		(661)
Noncontrolling Interest	14		17
Total Shareholders' Equity	12,290	$ 12,445	12,580	$ 14,023	$ 14,391	$ 14,721
Total Liabilities and Shareholders' Equity	37,924		36,729
Investments in Conrail
Current Assets:
Investment in Affiliates and Other Companies	959		943
Affiliates and Other Companies
Current Assets:
Investment in Affiliates and Other Companies	$ 863		$ 836