INCOME TAXES: (Tables)

3 Months Ended

Mar. 31, 2014

INCOME TAXES:

Schedule of income tax provision and effective income tax rate

The income tax provision and the effective income tax rate for the first quarter 2014 and 2013 were as follows ($ in millions):

	2014			2013
Income tax provision	$	204.1		$	238.8
Effective income tax rate	39.1		%	32.8		%