Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Stock-Based Compensation

Schedule of stock option activity

				Weighted
				Average	Aggregate
		Weighted		Remaining	Intrinsic
		Average		Contractual	Value
	Options	Exercise Price		Term (in years)	(in millions)
Options outstanding at January 1, 2016	31,136,475	$	37.62	6.92	$	491.0
Options granted	245,000
Options exercised	(650,840)
Options forfeited	(48,680)
Options outstanding at March 31, 2016	30,681,955		37.97	6.75		609.9
Options granted	7,138,450
Options exercised	(1,951,432)
Options forfeited	(389,400)
Options outstanding at June 30, 2016	35,479,573		42.52	7.27		534.2
Options granted	130,000
Options exercised	(2,077,253)
Options forfeited	(190,540)
Options outstanding at September 30, 2016	33,341,780	$	43.56	7.19	$	712.0
Vested and non-vested options expected to vest at September 30, 2016	31,422,851	$	43.09	7.11	$	685.9
Exercisable options at September 30, 2016	14,558,550	$	32.39	5.52	$	473.7

Summary of status of non-vested options and changes during the year

		Weighted
		Average Fair
		Value at Grant
	Options	Date
Non-vested options at January 1, 2016	17,323,040	$	8.24
Options granted	245,000		6.98
Options vested	(44,400)		9.82
Options forfeited	(48,680)		8.38
Non-vested options at March 31, 2016	17,474,960		8.22
Options granted	7,138,450		7.40
Options vested	(5,313,500)		7.91
Options forfeited	(389,400)		8.33
Non-vested options at June 30, 2016	18,910,510		7.99
Options granted	130,000		7.34
Options vested	(66,740)		8.28
Options forfeited	(190,540)		8.23
Non-vested options at September 30, 2016	18,783,230	$	7.99

Summary of activity in the option plans

	Three months ended				Nine months ended
	September 30,				September 30,
	2016		2015		2016		2015
Total intrinsic value of stock options exercised	$	72.7	$	3.9	$	155.3	$	61.8
Total fair value of stock options vested		0.6		0.4		43.0		39.8

Schedule of restricted share activity

				Weighted
				Average Remaining
	Restricted	Fair Value at		Amortization Term
	Shares	Grant Date		(in years)
Restricted shares outstanding at January 1, 2016	17,256	$	57.97	0.39
Restricted shares granted	—		—
Restricted shares outstanding at March 31, 2016	17,256		57.97	0.15
Shares vested and issued	(17,256)		57.97
Restricted shares granted	16,905		57.99
Restricted shares outstanding at June 30, 2016	16,905		57.99	0.90
Restricted shares granted	—		—
Restricted shares outstanding at September 30, 2016	16,905	$	57.99	0.65