Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2013

Supplemental Cash Flow Elements

Supplemental Cash Flow Information

(Millions)	2013		2012		2011
Cash income tax payments, net of refunds	$	1,803	$	1,717	$	1,542
Cash interest payments		169		166		219
Capitalized interest		21		23		19