Equifax Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

Changes in Outstanding Options and Weighed-Average Exercise Price Per Share (Detail)

v2.4.0.6

Changes in Outstanding Options and Weighed-Average Exercise Price Per Share (Detail) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Year	Dec. 31, 2010	Dec. 31, 2009
Shares
Outstanding at the beginning of the year	6,526	6,845	6,422
Granted (all at market price)	1,298	1,216	1,198
Exercised	(947)	(1,358)	(589)
Forfeited and cancelled	(162)	(177)	(186)
Outstanding at the end of the year	6,715	6,526	6,845
Vested and expected to vest at end of year	6,472
Exercisable at end of year	4,289	4,248	4,780
Weighted-Average Exercise Price
Outstanding at the beginning of the year	$ 30.63	$ 28.68	$ 27.84
Granted (all at market price)	$ 32.94	$ 32.02	$ 28.49
Exercised	$ 25.02	$ 21.58	$ 17.35
Forfeited and cancelled	$ 32.99	$ 34.04	$ 33.70
Outstanding at the end of the year	$ 31.82	$ 30.63	$ 28.68
Vested and expected to vest at end of year	$ 31.86
Exercisable at end of year	$ 31.71	$ 30.28	$ 27.21
Weighted-Average Remaining Contractual Term
Outstanding at the end of the year	6.3
Vested and expected to vest at end of year	6.2
Exercisable at end of year	4.8
Aggregate Intrinsic Value
Outstanding at the end of the year	$ 47.9
Vested and expected to vest at end of year	46.0
Exercisable at end of year	$ 31.6

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