Annual report pursuant to Section 13 and 15(d)

Treasury Stock (Details)

v3.10.0.1
Treasury Stock (Details) - USD ($)
shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Equity [Abstract]      
Payments for Repurchase of Common Stock $ 75.0 $ 130.0 $ 120.3
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 34,800    
Treasury Stock Activity [Roll Forward]      
Balance at January 1 15,001 13,221 11,725
Compensation Plans and Other (460) (547) (1,199)
Share Repurchases 1,240 2,327 2,695
Balance at December 31 15,781 15,001 13,221