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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
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Stockholders’ Equity |  |
Investments, fair value disclosure | $ 1,778 | $ 1,868
Common stock, par value (usd per share) | $ 0.3333 | $ 0.3333
Common stock, shares issued (in shares) | 2,805,961,317 | 2,805,961,317
Shares repurchased (in shares) | 954,184,118 | 947,542,152

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