Supplemental cash flow information

6 Months Ended

Jun. 30, 2020

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow information

Note 21. Supplemental cash flow information

A summary of supplemental cash flow information is presented in the following table (in millions).

	First Six Months
	2020		2019
Cash paid during the period for:
Income taxes	$	980	$	1,199
Interest:
Insurance and other		591		540
Railroad, utilities and energy		1,438		1,370
Non-cash investing and financing activities:
Non-cash acquisition of equity securities		231		—