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Equity Level 1 (Notes) | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Stockholders' Equity Note Disclosure [Text Block] | Equity (All shares reported in whole numbers) Share Repurchase Program Subject to market conditions, normal trading restrictions, and limitations in our debt covenants, we may make purchases in the open market or through privately negotiated transactions under our share repurchase program. During the nine months ended September 30, 2020, we repurchased 8,034,996 shares of common stock at an aggregate cost of $329.1 million, which is an average cost per share of $40.96. During August 2020, our Board of Directors increased our share repurchase authorization to $500 million. After these repurchases and the increase in our share repurchase authorization, the remaining dollar value of shares authorized to be purchased under the share repurchase program was $418.4 million at September 30, 2020. Subsequent to September 30, 2020, we repurchased 1,491,394 shares for $65.4 million at an average cost per share of $43.85. After these repurchases, the remaining dollar value of shares authorized to be purchased under the share repurchase program is $353.0 million.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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