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STOCK-BASED COMPENSATION, Stock Options (Details) (USD $)
In Millions, except Share data, unless otherwise specified
|
12 Months Ended |
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Assumptions used to calculate the fair value of options [Abstract] |
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| Risk-free interest rate (in hundredths) |
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|
1.93%
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| Risk-free interest rate, minimum (in hundredths) |
0.83%
|
0.99%
|
|
| Risk-free interest rate, maximum (in hundredths) |
1.14%
|
2.16%
|
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| Dividend yield (in hundredths) |
0.00%
|
0.00%
|
0.00%
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| Volatility factors (in hundredths) |
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|
39.60%
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| Volatility factors, minimum (in hundredths) |
54.60%
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39.60%
|
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| Volatility factors, maximum (in hundredths) |
61.30%
|
62.50%
|
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| Weighted average expected life (in years) |
6 years 5 months 16 days
|
6 years 3 months
|
6 years 3 months
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| Stock-based compensation, additional disclosures [Abstract] |
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| Intrinsic value of stock options exercised |
$ 1.3
|
$ 3.0
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$ 12.8
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| Cash received from stock option exercises |
1.1
|
2.7
|
8.6
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| Shares available for future grants (in shares) |
35,900,000
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|
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| Total intrinsic value of options outstanding |
31.3
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|
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| Total intrinsic value of options exercisable |
$ 20.9
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|
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$0.02-$4.99 [Member]
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|
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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|
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| Lower range limit (in dollars per share) |
$ 0.02
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|
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| Upper range limit (in dollars per share) |
$ 4.99
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|
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| Outstanding (in shares) |
2,936,000
|
|
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| Outstanding, weighted average remaining contractual life (in years) |
6 years 2 months 12 days
|
|
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 3.04
|
|
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| Exercisable (in shares) |
1,731,000
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|
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| Exercisable, weighted average remaining contractual life (in years) |
6 years 2 months 12 days
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|
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 3.03
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|
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$5.00-$9.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 5.00
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|
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| Upper range limit (in dollars per share) |
$ 9.99
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| Outstanding (in shares) |
8,956,000
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|
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| Outstanding, weighted average remaining contractual life (in years) |
8 years 6 months
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|
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 7.88
|
|
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| Exercisable (in shares) |
3,232,000
|
|
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| Exercisable, weighted average remaining contractual life (in years) |
6 years 7 months 6 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 6.21
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|
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$10.00-$14.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 10.00
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| Upper range limit (in dollars per share) |
$ 14.99
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| Outstanding (in shares) |
8,646,000
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| Outstanding, weighted average remaining contractual life (in years) |
6 years 10 months 24 days
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 12.07
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| Exercisable (in shares) |
6,382,000
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| Exercisable, weighted average remaining contractual life (in years) |
6 years 4 months 24 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 12.35
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|
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$15.00-$19.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 15.00
|
|
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| Upper range limit (in dollars per share) |
$ 19.99
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| Outstanding (in shares) |
1,296,000
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| Outstanding, weighted average remaining contractual life (in years) |
5 years
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 18.35
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|
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| Exercisable (in shares) |
1,296,000
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|
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| Exercisable, weighted average remaining contractual life (in years) |
5 years
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 18.35
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$20.00-$24.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 20.00
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| Upper range limit (in dollars per share) |
$ 24.99
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| Outstanding (in shares) |
1,692,000
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| Outstanding, weighted average remaining contractual life (in years) |
4 years 1 month 6 days
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 24.50
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| Exercisable (in shares) |
1,692,000
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| Exercisable, weighted average remaining contractual life (in years) |
4 years 1 month 6 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 24.50
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|
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$25.00-$29.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 25.00
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| Upper range limit (in dollars per share) |
$ 29.99
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| Outstanding (in shares) |
776,000
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| Outstanding, weighted average remaining contractual life (in years) |
2 years 3 months 18 days
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 29.42
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| Exercisable (in shares) |
776,000
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| Exercisable, weighted average remaining contractual life (in years) |
2 years 3 months 18 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 29.42
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$30.00-$34.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 30.00
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| Upper range limit (in dollars per share) |
$ 34.99
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| Outstanding (in shares) |
5,000
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| Outstanding, weighted average remaining contractual life (in years) |
1 year 4 months 24 days
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 32.76
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| Exercisable (in shares) |
5,000
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| Exercisable, weighted average remaining contractual life (in years) |
1 year 4 months 24 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 32.76
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$35.00-$39.99 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Lower range limit (in dollars per share) |
$ 35.00
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| Upper range limit (in dollars per share) |
$ 39.99
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| Outstanding (in shares) |
415,000
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| Outstanding, weighted average remaining contractual life (in years) |
2 years 4 months 24 days
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| Outstanding, weighted average exercise price (in dollars per share) |
$ 39.93
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| Exercisable (in shares) |
415,000
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| Exercisable, weighted average remaining contractual life (in years) |
2 years 4 months 24 days
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| Exercisable, weighted average exercise price (in dollars per share) |
$ 39.93
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Stock Incentive Plan [Member]
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| Stock-based compensation, additional disclosures [Abstract] |
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| Shares available for future grants (in shares) |
8,000,000
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Stock Options [Member]
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| Summary of stock option activity [Roll Forward] |
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| Outstanding at beginning of period (in shares) |
21,429,000
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20,464,000
|
7,099,000
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| Granted (in shares) |
5,495,000
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2,512,000
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2,471,000
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| Merger conversion (in shares) |
0
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0
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15,476,000
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| Exercised (in shares) |
(259,000)
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(529,000)
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(1,642,000)
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| Forfeited or expired (in shares) |
(1,943,000)
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(1,018,000)
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(2,940,000)
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| Outstanding at end of period (in shares) |
24,722,000
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21,429,000
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20,464,000
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| Exercisable at end of period (in shares) |
15,529,000
|
12,276,000
|
9,454,000
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| Summary of stock option activity, additional disclosures [Abstract] |
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| Price, Outstanding at beginning of period (in dollars per share) |
$ 12.33
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$ 12.41
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$ 12.13
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| Price, Granted (in dollars per share) |
$ 8.80
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$ 11.22
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$ 11.01
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| Price, Merger conversion (in dollars per share) |
$ 0
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$ 0
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$ 12.72
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| Price, Exercised (in dollars per share) |
$ 4.39
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$ 5.13
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$ 4.76
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| Price, Forfeited or expired (in dollars per share) |
$ 11.70
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$ 15.20
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$ 16.35
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| Price, Outstanding at end of period (in dollars per share) |
$ 11.68
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$ 12.33
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$ 12.41
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| Price, Exercisable at end of period (in dollars per share) |
$ 13.46
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$ 14.71
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$ 16.43
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| Weighted average fair value per option granted (in dollars per share) |
$ 3.93
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$ 5.27
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$ 4.59
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| Stock-based compensation, additional disclosures [Abstract] |
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| Shares available for future grants (in shares) |
24,700,000
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