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Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | $ 9,433 |  | $ 7,977
Net income (loss) | 609 |  | 655
Other comprehensive income (loss) | 0 |  | 1
Cash dividends | (151) |  | (145)
Stock Repurchased During Period, Value | (250) |  | (100)
Stock plans | 41 |  | 60
Other | 0 |  | 3
Ending Balance | $ 9,682 |  | $ 8,445
Common Stock, Dividends, Per Share, Declared | $ 0.17 |  | $ 0.16
Stock Repurchased During Period, Shares | 7.0 |  | 2.9
Common Shares |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | $ 2,663 |  | $ 2,664
Net income (loss) | 0 |  | 0
Other comprehensive income (loss) | 0 |  | 0
Cash dividends | 0 |  | 0
Stock Repurchased During Period, Value | 0 |  | 0
Stock plans | 1 |  | 0
Other | 0 |  | 0
Ending Balance | 2,662 |  | 2,664
Paid-in Capital in Excess of Par Value |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | 63 |  | 50
Net income (loss) | 0 |  | 0
Other comprehensive income (loss) | 0 |  | 0
Cash dividends | 0 |  | 0
Stock Repurchased During Period, Value | 0 |  | 0
Stock plans | 63 |  | 50
Other | 0 |  | 0
Ending Balance | 0 |  | 0
Retained Earnings |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | 12,536 |  | 10,572
Net income (loss) | 606 |  | 651
Other comprehensive income (loss) | 0 |  | 0
Cash dividends | (151) |  | (145)
Stock Repurchased During Period, Value | 0 |  | 0
Stock plans | 3 | [1] | 3
Other | 0 |  | 0
Ending Balance | 12,988 |  | 11,075
Accumulated Other Comprehensive Income (Loss) |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | (331) |  | (230)
Net income (loss) | 0 |  | 0
Other comprehensive income (loss) | (1) |  | 1
Cash dividends | 0 |  | 0
Stock Repurchased During Period, Value | 0 |  | 0
Stock plans | 0 |  | 0
Other | 0 |  | 0
Ending Balance | (332) |  | (229)
Noncontrolling Interest in Consolidated Subsidiaries |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | 42 |  | 29
Net income (loss) | 3 |  | 4
Other comprehensive income (loss) | 1 |  | 0
Cash dividends | 0 |  | 0
Stock Repurchased During Period, Value | 0 |  | 0
Stock plans | 0 |  | 0
Other | 0 |  | 3
Ending Balance | 46 |  | 30
Treasury Stock, Common |  |  |
Shareholders' equity activity [Roll Forward] |  |  |
Beginning Balance | (5,540) |  | (5,108)
Net income (loss) | 0 |  | 0
Other comprehensive income (loss) | 0 |  | 0
Cash dividends | 0 |  | 0
Stock Repurchased During Period, Value | 250 |  | 100
Stock plans | 108 |  | 113
Other | 0 |  | 0
Ending Balance | $ (5,682) |  | $ (5,095)
[1] | In the first quarter of 2024, we issued common stock from treasury shares for stock options exercised, restricted stock grants, performance shares under our performance unit program, and purchases under our employee stock purchase plan. As a result, additional paid in capital was reduced to zero, which resulted in a reduction of retained earnings by $3 million. Future issuances from treasury shares could similarly impact additional paid in capital and retained earnings.

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