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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 839 $ 1,115
Accounts receivable – net 976 848
Materials and supplies 218 221
Other current assets 134 134
Total current assets 2,167 2,318
Investments 3,707 3,590
Properties less accumulated depreciation of $12,031 and 31,653 31,345
Other assets 966 709
Total assets 38,493 37,962
Current liabilities:    
Accounts payable 1,351 1,016
Income and other taxes 305 263
Other current liabilities 312 302
Current maturities of long-term debt 553 579
Total current liabilities 2,521 2,160
Long-term debt 13,287 12,102
Other liabilities 1,879 1,987
Deferred income taxes 7,165 6,922
Total liabilities 24,852 23,171
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 242 254
Additional paid-in capital 2,215 2,248
Accumulated other comprehensive loss (402) (594)
Retained income 11,586 12,883
Total stockholders’ equity 13,641 14,791
Total liabilities and stockholders’ equity $ 38,493 $ 37,962