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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Compensation And Retirement Disclosure [Abstract]

Schedule of Fair Value of TSR Performance RSUs

We estimated the fair value of the TSR Performance RSUs referred to above on the date of the grant using a Monte Carlo simulation with the following assumptions:

		Year Ended December 31,
			2019				2018				2017
Volatility of common stock			25.96	%			25.02	%			27.85	%
Expected dividend yield			0.00	%			0.00	%			0.00	%
Risk-free interest rate			2.12	%			2.73	%			2.33	%

Schedule of Non-Vested Stock Awards

A summary of the status of our non-vested stock awards is presented in the table below:

		Shares/Units				Weighted Average Market Value Per Share
Balance at December 31, 2016			4,843,273			$	31.66
Granted			5,152,082				40.11
Performance award achievement adjustments			489,219				30.93
Vested			(2,510,031	)			29.98
Forfeited			(297,441	)			32.85
Balance at December 31, 2017			7,677,102				37.76
Granted			2,023,266				45.70
Performance award achievement adjustments			282,953				38.09
Vested			(2,177,800	)			34.78
Forfeited			(623,161	)			40.85
Balance at December 31, 2018			7,182,360				41.04
Granted			2,000,977				50.07
Performance award achievement adjustments			166,007				37.36
Vested			(1,323,351	)			37.43
Forfeited			(316,294	)			42.09
Balance at December 31, 2019			7,709,699				43.89

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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