Supplemental cash flow information (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Cash Flow Supplemental Disclosures

A summary of supplemental cash flow information for each of the three years ending December 31, 2011 is presented in the following table (in millions).

	2011		2010		2009
Cash paid during the period for:
Income taxes	$	2,885	$	3,547	$	2,032
Interest:
Insurance and other businesses		243		185		145
Railroad, utilities and energy businesses		1,821		1,667		1,142
Finance and financial products businesses		662		708		615
Non-cash investing and financing activities:
Liabilities assumed in connection with acquisitions		5,836		31,406		278
Common stock issued in connection with acquisition of BNSF		—		10,577		—
Common stock issued in connection with acquisition of noncontrolling interests in Wesco Financial Corporation		245		—