Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2023

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Stock Option Activity

The following table summarizes the activity related to options during 2023:

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (In millions)
Outstanding at January 1		5,927,398		$	17.20
Options granted		—			—
Options exercised		(329,824	)		10.12			$	1.0
Options expired		(315,118	)		15.69
Options cancelled		(217,641	)		17.48
Outstanding at December 31		5,064,815			17.74		4.5		13.1
Vested and expected to vest at December 31		5,052,481			17.76		4.5		13.0
Exercisable at December 31		3,861,080			20.12		3.9		8.0
Available for grant at December 31		18,710,713

Significant Options Groups Outstanding

Significant option groups outstanding at December 31, 2023 and related weighted average exercise price and remaining contractual term information follows:

Grant Date	Options Outstanding		Options Exercisable		Exercise Price		Remaining Contractual Term (Years)
2/25/2020		3,110,848		1,907,360	$	10.12		6.16
2/27/2017		511,087		511,087		35.26		3.16
2/22/2016		492,706		492,706		29.90		2.15
2/23/2015		444,806		444,806		27.16		1.15
2/24/2014		338,440		338,440		26.44		0.15
All Other (1)		166,928		166,681
		5,064,815		3,861,080

(1)Options in the “All Other” category had exercise prices ranging from $22.27 to $32.72. The weighted average exercise price for options outstanding and exercisable in that category was $27.61 for both, while the remaining weighted average contractual term was 1.4 years for both.

Stock-based Compensation Expense and Cash Activity

Stock-based compensation expense, cash payments made to settle SARs and cash received from the exercise of stock options follows:

(In millions)	2023			2022			2021
Stock-based compensation expense recognized	$	19		$	14		$	36
Tax benefit		(4	)		(3	)		(8	)
After-tax stock-based compensation expense	$	15		$	11		$	28
Cash payments to settle SARs	$	—		$	—		$	—
Cash received from stock option exercises	$	3		$	1		$	26

Performance Share Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Nonvested Share Activity

The following table summarizes the activity related to performance share units during 2023:

	Units			Weighted Average Grant Date Fair Value
Unvested at January 1		663,690		$	19.43
Units granted		381,169			11.48
Units vested		(336,402	)		12.85
Units forfeited		—			—
Unvested at December 31		708,457			14.69

Restricted Stock Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Nonvested Share Activity

The following table summarizes the activity related to restricted stock units during 2023:

	Units			Weighted Average Grant Date Fair Value
Unvested at January 1		1,374,608		$	12.95
Units granted		1,361,432			11.84
Units vested		(1,270,023	)		11.03
Units forfeited		(63,887	)		13.10
Unvested at December 31		1,402,131			13.60
Units vested but not released		1,884,258			12.24
Outstanding at December 31		3,286,389			14.10