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v3.21.1

Accumulated Other Comprehensive Loss and Shareholders' Equity - Changes in Shareholders' Equity (Deficit) (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | $ 430 | $ 703
Net (loss) income | (11) | 31
Other comprehensive income (loss) | (155) | (378)
Dividends |  | (156)
Stock-based compensation plans | (30) | (55)
Purchase of treasury stock |  | (150)
Balance at end of period | 234 | $ (20)
Accounting standards update |  | us-gaap:AccountingStandardsUpdate201602Member
Cash dividends (in USD per share) |  | $ 0.48
Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | $ (15)
Class A Common Stock |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | $ 5 | $ 5
Balance at beginning of period (in shares) | 324.4 | 324.0
Stock-based compensation plans (in shares) | 1.2 | 1.2
Purchase of treasury stock (in shares) |  | (1.0)
Balance at end of period | $ 5 | $ 5
Balance at end of period (in shares) | 325.6 | 324.2
Class A Common Stock | Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | $ 0
Additional Paid-in-Capital |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | $ 5,851 | 5,800
Stock-based compensation plans | (64) | (89)
Balance at end of period | 5,787 | 5,711
Additional Paid-in-Capital | Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | 0
Retained Earnings |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | 9,206 | 9,644
Net (loss) income | (11) | 31
Dividends |  | (156)
Balance at end of period | 9,195 | 9,504
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | (15)
Treasury Stock, at Cost |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | (14,497) | (14,385)
Stock-based compensation plans | 34 | 34
Purchase of treasury stock |  | (150)
Balance at end of period | (14,463) | (14,501)
Treasury Stock, at Cost | Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | 0
Accumulated Other Comprehensive Loss |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period | (135) | (361)
Other comprehensive income (loss) | (155) | (378)
Balance at end of period | $ (290) | (739)
Accumulated Other Comprehensive Loss | Cumulative Effect, Period of Adoption, Adjustment |  |
(Increase) Decrease in Shareholders' Deficit [Roll Forward] |  |
Balance at beginning of period |  | $ 0

X
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