Common Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Weighted Average Number of Common Shares Used In the Computation of Basic and Diluted Earnings per Share

The weighted average number of shares used in the computation of net income per share was as follows:

(In thousands)	2021	2020	2019
Basic	184,953	186,924	190,722
Diluted	186,499	188,763	193,521

Schedule of Changes in Shares of Common Stock Outstanding

Changes in shares of common stock outstanding, net of treasury shares, are presented below. Shares of common stock issued and outstanding do not include shares related to unissued restricted stock units (including shares held in the grantor trust).

	2021	2020	2019
Balance, beginning of year	177,825,150	183,411,907	182,993,640
Shares issued	708,057	776,544	687,339
Shares repurchased	(1,752,619)	(6,363,301)	(269,072)
Balance, end of year	176,780,588	177,825,150	183,411,907