Earnings Per Share Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Net income	$ 118,770	$ 152,105	$ 264,749	$ 251,168
Income from continuing operations	$ 118,493	$ 151,707	$ 265,387	$ 250,770
Denominator for basic earnings per share—Weighted-average shares outstanding	304,001	311,891	305,123	313,460
Effect of dilutive securities:
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding	304,190	312,719	305,477	314,360
Income from continuing operations	$ 0.39	$ 0.49	$ 0.87	$ 0.80
Income from continuing operations	$ 0.39	$ 0.49	$ 0.87	$ 0.80
RSUs
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	189	315	352	364
Performance Based RSU [Member]
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	0	0
Stock options
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	513	2	536