Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2011

Supplemental Cash Flow Information Note Tables [Abstract]

Schedule of interest paid, income taxes paid, and significant noncash items

	Nine Months Ended September 30,
(In millions)	2011		2010
Net cash provided from operating activities:
Interest paid (net of amounts capitalized)	$	197	$	93
Income taxes paid to taxing authorities		2,183		1,426
Noncash investing and financing activities:
Debt payments made by United States Steel		18		106