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Stock-Based Compensation - TDS, Overview (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Stock based compensation |  |  |
Stock-based compensation expense | $ 49 | $ 53 | $ 59
Income tax benefit | (12) | (13) | (15)
Total stock-based compensation expense, net of income taxes | 37 | 40 | 44
Unrecognized compensation cost for all stock-based compensation awards | $ 60 |  |
Weighted average period for recognition of unrecognized compensation cost for all stock-based compensation awards | 2 years 1 month 6 days |  |
Tax benefit from exercise of stock options and other awards | $ 15 |  |
Selling, general and administrative expense |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 44 | 48 | 54
Cost of services expense |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 5 | 5 | 5
Long-Term Incentive Plans | Stock Options |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 2 | 3 | 3
Long-Term Incentive Plans | Restricted Stock Units |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 29 | 30 | 33
Long-Term Incentive Plans | Performance Share Units |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 16 | 17 | 21
Long-Term Incentive Plans | Deferred Compensation Stock Units |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | 0 | 1 | 0
Non-Employee Directors' Plan |  |  |
Stock based compensation |  |  |
Stock-based compensation expense | $ 2 | $ 2 | $ 2
Non-Employee Directors' Plan | TDS | Common Shares |  |  |
Stock based compensation |  |  |
Shares reserved | 132,000 |  |
Shares issued | 50,000 | 43,000 | 28,000
TDS Long-Term Incentive Plans | TDS | Common Shares |  |  |
Stock based compensation |  |  |
Shares reserved | 16,350,000 |  |
Dividend Reinvestment Plan | TDS | Series A Common Shares |  |  |
Stock based compensation |  |  |
Shares reserved | 78,000 |  |
Purchase price, percent | 95.00% |  |
Dividend Reinvestment Plan | TDS | Common Shares |  |  |
Stock based compensation |  |  |
Shares reserved | 2,329,000 |  |
Purchase price, percent | 95.00% |  |

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