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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Stock based compensation expense

Total share-based compensation expense is reported in “General and administrative expenses” in the accompanying consolidated statements of income, and summarized below.

			Year Ended December 31,
			2020												2019												2018
			(In millions)
			Pretax Charges						Net-of-Tax Amount						Pretax Charges						Net-of-Tax Amount						Pretax Charges						Net-of-Tax Amount
RSAs, PSAs and PSUs (defined below)			$	47					$	44					$	29					$	28					$	17					$	17
Employee stock purchase plan and stock options			10						9						10						9						10						9
Total			$	57					$	53					$	39					$	37					$	27					$	26

Restricted and performance stock activity

Activity for stock-based awards in the year ended December 31, 2020, is summarized below.

			RSAs						Weighted Average Grant Date Fair Value						PSUs						Weighted Average Grant Date Fair Value
Unvested balance, December 31, 2019			447,680						$	102.41					324,078						$	101.45
Granted			344,739						127.89						188,522						123.61
Vested			(172,675)						98.05						(7,368)						68.16
Forfeited			(34,660)						113.10						(33,323)						98.34
Unvested balance, December 31, 2020			585,084						$	118.07					471,909						$	111.04

Stock options, activity

The total grant date fair value of awards granted and vested is presented in the following table.

			Year Ended December 31,
			2020						2019						2018
			(In millions)
Granted:
RSAs			$	44					$	33					$	28
PSUs			23						20						16
Total granted			$	67					$	53					$	44
Vested:
RSAs			$	22					$	19					$	15
PSAs			—						—						3
PSUs			1						2						—
Total vested			$	23					$	21					$	18

Stock Options. Stock option awards generally have an exercise price equal to the fair market value of our common stock on the date of grant, vest in equal annual installments over periods up to four years from the date of grant, and have a maximum term of ten years from the date of grant. Stock option activity for the year ended December 31, 2020, is summarized below.

			Number of Shares						Weighted Average Exercise Price						Aggregate Intrinsic Value						Weighted Average Remaining Contractual term
									(Per share)						(In millions)						(Years)
Stock options outstanding as of December 31, 2019 and December 31, 2020			405,000						$	64.79					$	60					6.4
Stock options exercisable and expected to vest as of December 31, 2020			405,000						$	64.79					$	60					6.4
Exercisable as of December 31, 2020			405,000						$	64.79					$	60					6.4

Stock option plans, by exercise price range

The following is a summary of information about stock options outstanding and exercisable at December 31, 2020.

			Options Outstanding and Exercisable
			Number of Shares						Weighted-Average Remaining Contractual Life						Weighted-Average Exercise Price
									(Years)						(Per share)
Range of Exercise Prices
$33.02			30,000						2.2						$	33.02
$67.33			375,000						6.8						$	67.33
Total			405,000

X

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Tabular disclosure of share-based payment arrangement.

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