Background and Basis of Presentation (Narrative) (Details)	1 Months Ended	3 Months Ended			9 Months Ended
	Aug. 31, 2022 $ / shares	Sep. 30, 2022 USD ($) lease $ / shares	Jun. 30, 2022 $ / shares	Sep. 30, 2021 $ / shares	Sep. 30, 2022 USD ($) lease $ / shares	Sep. 30, 2021 $ / shares	Oct. 28, 2021 USD ($)	Jan. 31, 2021 USD ($)
Equity, Class of Treasury Stock [Line Items]
Number of leveraged leases remaining | lease		1			1
Common Stock, Dividend Increase, Percentage	0.044
Common Stock, Dividends, Per Share, Declared | $ / shares	$ 0.94	$ 0.94	$ 0.90	$ 0.90	$ 2.74	$ 2.62
Common Stock, Dividend Rate, Annual Per Share | $ / shares		$ 3.76			$ 3.76
January 2021 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Planned share repurchase program | $							$ 3,500,000,000	$ 2,000,000,000
Stock repurchase program, remaining authorized repurchase amount | $		$ 374,000,000			$ 374,000,000