Common Share Repurchases	3 Months Ended
	Mar. 31, 2021
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Common Share Repurchases	COMMON SHARE REPURCHASES During the three months ended March 31, 2021, the Company repurchased 2.4 million common shares under its share repurchase authorization for total cost of $356 million. The average cost per share repurchased was $147.87.  In addition, the Company acquired 0.3 million shares for a total cost of approximately $41 million during the three months ended March 31, 2021 that were not part of the publicly announced share repurchase authorization.  These shares consisted of shares retained to cover payroll withholding taxes in connection with the vesting of restricted stock unit awards and performance share awards, and shares used by employees to cover the price of certain stock options that were exercised. On April 20, 2021, the Board of Directors approved a share repurchase authorization that added an additional $5.0 billion of repurchase capacity to the $805 million of capacity remaining at March 31, 2021.