Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Summary of Activities Under Share-Based Compensation Plans (Detail)

v3.22.0.1
Share-Based Compensation - Summary of Activities Under Share-Based Compensation Plans (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding and nonvested as of December 31, 2020, Number of Shares [1] 3,068  
Granted, Number of Shares [2] 1,537  
Vested, Number of Shares [3] (941)  
Forfeited, Number of Shares [4] (264)  
Outstanding and nonvested as of December 31, 2021, Shares [1] 3,400 3,068
Number of Shares, Expected to vest as of December 31, 2021 [5] 2,955  
Outstanding and nonvested as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share [1] $ 44.01  
Granted, Weighted Average Grant Date Fair Value Per Share [2] 48.32  
Vested, Weighted Average Grant Date Fair Value Per Share [3] 45.19  
Forfeited, Weighted Average Grant Date Fair Value Per Share [4] 48.80  
Outstanding and nonvested as of December 31, 2021, Weighted Average Grant Date Fair Value Per Share [1] 45.26 $ 44.01
Expected to vest as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share [5] $ 45.07  
SARs [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Awards Outstanding, Beginning Balance [6],[7] 3,737  
Exercised, Number of Awards [8] (1,092)  
Forfeited, Number of Awards (23)  
Number of Awards Outstanding, Ending Balance [6] 2,622 3,737 [7]
Number of Awards Exercisable, Ending Balance [9] 2,622  
Number of Awards Vested and expected to vest, Ending Balance 2,622  
Weighted Average Exercise Price Per Award Outstanding, Beginning Balance [6],[7] $ 27.23  
Exercised, Weighted Average Exercise Price Per Award [8] 27.60  
Forfeited, Weighted Average Exercise Price Per Award 25.03  
Weighted Average Exercise Price Per Award Outstanding, Ending Balance [6] 27.10 $ 27.23 [7]
Exercisable, Weighted Average Exercise Price Per Award, Ending Balance [9] 27.10  
Weighted Average Exercise Price Per Award, Vested and expected to vest, Ending Balance $ 27.10  
Weighted Average Remaining Contractual Term Outstanding [6] 3 years 9 months 18 days 4 years 7 months 6 days [7]
Exercisable Weighted Average Remaining Contractual Term [9] 3 years 9 months 18 days  
Weighted Average Remaining Contractual Term, Vested and expected to vest 3 years 9 months 18 days  
Aggregate Intrinsic Value Outstanding [6] $ 36.3 $ 77.8 [7]
Exercisable, Aggregate Intrinsic Value [9] 36.3  
Aggregate Intrinsic Value, Vested and expected to vest $ 36.3  
[1] Includes 913,388 and 712,596 performance based stock unit awards as of December 31, 2021 and 2020, respectively, which represents the maximum amount that can vest.
[2] Includes 447,346 performance-based stock unit awards.
[3] Includes 117,105 performance-based stock unit awards.
[4] Includes 129,449 performance-based stock unit awards.
[5] Includes 539,452 performance-based stock unit awards.
[6] Includes 0.8 million and 1.1 million performance condition SARs as of December 31, 2021 and 2020, respectively.
[7] Includes less than 0.1 million market condition SARS as of December 31, 2020.
[8] Includes less than 0.1 million market condition and 0.3 million performance condition SARs.
[9] Includes 0.8 million performance condition SARs.