Income Taxes (Tables)

3 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income Taxes And Related Effective Tax Rates

	Three Months Ended March 31,
In millions	2012		2011
Income (loss) before income taxes	$	21	$	(1,763)
Provision (benefit) for income taxes	$	11	$	(489)
Effective tax rate		52.4%		27.7%

Change In Unrecognized Tax Benefits ("UTB") And Related Interest And Penalties To Income Tax

In millions
Unrecognized tax benefit as of December 31, 2011	$	47
The gross amount of the increase/(decrease) in the UTB as a result of tax positions taken:
During a prior year		2
During the current year		-
The amounts of decreases in the UTB related to settlements with taxing authorities		(26)
The reduction in the UTB as a result of the applicable statute of limitations		-
Unrecognized tax benefit as of March 31, 2012	$	23