v3.10.0.1

Stockholders’ Equity - Summary of Stock Repurchase Activity (Details) $ / shares in Units, $ in Millions | 9 Months Ended
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Sep. 30, 2018 USD ($) $ / shares shares
Equity [Abstract] |
Shares Repurchased | shares | 79,000,000
Average Price per Share (in usd per share) | $ / shares | $ 37.82
Value of Shares Repurchased | $ 3,000
Shares Repurchased, Remaining Amount Authorized |
Beginning balance | 1,651
Repurchase of shares of common stock | (3,000)
Ending balance | $ 4,651
Treasury shares retired | shares | 0

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