2007 2006 2005
Millions of dollars and shares
Balance at January 1 $ 7,376 $ 6,372 $ 3,932
Dividends and other transactions with shareholders (1,499) (1,324) 202
Sale of stock by a subsidiary 117
Adoption of Statement of Financial Accounting
    Standards No. 158 (218)
Adoption of Financial Accounting Standards Board
    Interpretation No. 48 (30)
Shares exchanged in KBR, Inc. exchange offer (2,809)
Other (4) 34
Comprehensive income
    Net income 3,499 2,348 2,358
    Net cumulative translation adjustments (23) 34 (41)
    Defined benefit and other postretirement plans adjustments 355 2 (54)
    Net unrealized gains (losses) on investments
and derivatives
1 11 (25)
Total comprehensive income 3,832 2,395 2,238
Balance at December 31 $ 6,866 $ 7,376 $ 6,372