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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 1,115 $ 580
Accounts receivable – net 848 920
Materials and supplies 221 244
Other current assets 134 337
Total current assets 2,318 2,081
Investments 3,590 3,428
Properties less accumulated depreciation of $11,985 and 31,345 31,614
Other assets 709 800
Total assets 37,962 37,923
Current liabilities:    
Accounts payable 1,016 1,428
Income and other taxes 263 229
Other current liabilities 302 327
Current maturities of long-term debt 579 316
Total current liabilities 2,160 2,300
Long-term debt 12,102 11,880
Other liabilities 1,987 1,744
Deferred income taxes 6,922 6,815
Total liabilities 23,171 22,739
Stockholders’ equity:    
Common stock $1.00 per share par value, 1,350,000,000 shares authorized; outstanding 252,095,082 and 257,904,956 shares, respectively, net of treasury shares 254 259
Additional paid-in capital 2,248 2,209
Accumulated other comprehensive loss (594) (491)
Retained income 12,883 13,207
Total stockholders’ equity 14,791 15,184
Total liabilities and stockholders’ equity $ 37,962 $ 37,923