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v3.19.1

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2017 |  | $ 12,530 | $ 0 | $ 12,053 | $ 8,256 | $ (7,621) | $ (158)
Beginning balance (shares) at Dec. 31, 2017 |  |  | 715 |  |  |  | 7
Net income |  | 557 |  |  | 557 |  |
Change in accounting principle and other |  | (245) |  |  | (139) | (106) |
Dividends declared |  | (216) |  |  | (216) |  |
Other comprehensive income |  | 46 |  |  |  | 46 |
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes) | [1] | (26) |  | 10 |  |  | $ (36)
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes) (shares) | [1] |  | 1 |  |  |  | 1
Stock options exercised |  | 1 |  | 1 |  |  |
Stock options exercised (shares) |  |  | 1 |  |  |  |
Stock purchased and retired |  | (325) |  | (97) | (228) |  |
Stock purchased and retired (shares) |  |  | (6) |  |  |  |
Ending balance at Mar. 31, 2018 |  | 12,322 | $ 0 | 11,967 | 8,230 | (7,681) | $ (194)
Ending balance (shares) at Mar. 31, 2018 |  |  | 711 |  |  |  | 8
Beginning balance at Dec. 31, 2018 |  | 13,687 | $ 0 | 11,671 | 10,039 | (7,825) | $ (198)
Beginning balance (shares) at Dec. 31, 2018 |  |  | 688 |  |  |  | 8
Net income |  | 730 |  |  | 730 |  |
Dividends declared |  | (232) |  |  | (232) |  |
Other comprehensive income |  | 59 |  |  |  | 59 |
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes) | [1] | (8) |  | 27 |  |  | $ (35)
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes) (shares) | [1] |  | 2 |  |  |  | 1
Stock options exercised |  | 0 |  | 0 |  |  |
Stock options exercised (shares) |  |  | 0 |  |  |  |
Stock purchased and retired |  | (1,325) |  | (444) | (881) |  |
Stock purchased and retired (shares) |  |  | (26) |  |  |  |
Ending balance at Mar. 31, 2019 |  | $ 12,911 | $ 0 | $ 11,254 | $ 9,656 | $ (7,766) | $ (233)
Ending balance (shares) at Mar. 31, 2019 |  |  | 664 |  |  |  | 9
[1] | Weighted average price per share.

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