Capital Stock (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Share Repurchases

Shares repurchased under the authorized programs were as follows:

	Year Ended December 31,
	2020		2019		2018
Number of shares repurchased	3.4 million		5.6 million		7.7 million
Average price per share	$	109.88	$	122.72	$	117.02
Total cost of repurchases (in millions)(1)	$	370	$	683	$	903

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(1)Amount excludes transaction costs.

Summary Of Dividends Declared

In 2020, 2019 and 2018, the Executive Committee, acting on behalf of the Board of Directors, declared and paid the following common stock dividends:

	Declaration Date	Dividend Per Share		Record Date	Total Amount (in millions)		Payment Date
Year ended December 31, 2020:
	February 13, 2020	$	0.34	March 10, 2020	$	48	March 26, 2020
Year ended December 31, 2019:
	February 6, 2019	$	0.32	March 7, 2019	$	47	March 27, 2019
	May 1, 2019	0.32		May 23, 2019	48		June 13, 2019
	July 24, 2019	0.34		August 22, 2019	50		September 12, 2019
	November 6, 2019	0.34		November 19, 2019	50		December 12, 2019
Year ended December 31, 2018:
	February 7, 2018	$	0.30	March 8, 2018	$	46	March 28, 2018
	April 24, 2018	0.30		May 24, 2018	45		June 14, 2018
	July 23, 2018	0.32		August 23, 2018	47		September 13, 2018
	October 19, 2018	0.32		November 15, 2018	48		December 6, 2018