Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2012

Supplemental Cash Flow Information Note Details [Abstract]

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

	Six Months Ended June 30,
(In millions)	2012		2011
Net cash provided from operating activities:
Interest paid (net of amounts capitalized)	$	113	$	83
Income taxes paid to taxing authorities		2,317		1,351
Commercial paper and revolving credit arrangements, net:
Commercial paper - issuances	$	4,252	$	0
- repayments		(3,702)		0
Total	$	550	$	0
Noncash investing activities:
Debt payments made by United States Steel	$	14	$	14
Change in capital expenditure accrual		159		(54)