Earnings Per Share Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Net income	$ 193,931	$ 152,593	$ 458,680	$ 403,761
Income from continuing operations	$ 193,931	$ 151,812	$ 459,318	$ 402,582
Denominator for basic earnings per share—Weighted-average shares outstanding	304,271	307,230	304,837	311,360
Effect of dilutive securities:
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding	304,566	307,960	305,171	312,204
Income from continuing operations	$ 0.64	$ 0.49	$ 1.51	$ 1.29
Income from continuing operations	$ 0.64	$ 0.49	$ 1.51	$ 1.29
RSUs
Effect of dilutive securities:
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	295	293	333	341
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	437	1	503