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Stock Repurchase Program | 6 Months Ended
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Jun. 30, 2021
Equity [Abstract] |
Stock Repurchase Program | Stock Repurchase Program We repurchased and retired 5.7 million and 3.9 million shares of Common Stock under our stock repurchase program during the first six months of 2021 and 2020, respectively, at a cost of $1.5 billion and $669 million, respectively.

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- Definition The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2208821 + Details
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