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Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended				3 Months Ended
	Feb. 02, 2023	Feb. 28, 2022	Feb. 28, 2023	May 31, 2022	Nov. 30, 2021	Dec. 31, 2019	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Feb. 01, 2023
Stockholders Equity [Abstract]
Common stock, shares authorized (in shares)							1,000,000,000.0				1,000,000,000.0
Common stock, par value (in dollars per share)							$ 0.10				$ 0.10
Preferred Stock, Shares Authorized							4,500,000
Preferred Stock, Par or Stated Value Per Share							$ 1.00
Dividends rate per share							$ 1.35	$ 1.55	$ 1.27	$ 1.00	$ 0.84	$ 0.49	$ 0.34	$ 0.30	$ 0.37	$ 0.11	$ 0.11	$ 0.09
Fixed Dividend [Member]
Stockholders Equity [Abstract]
Percentage of increase to quarterly dividend								13.00%		45.00%
Dividends rate per share								$ 0.18		$ 0.16
Fixed Dividend [Member] | Minimum [Member]
Stockholders Equity [Abstract]
Dividends rate per share																	0.09
Fixed Dividend [Member] | Maximum [Member]
Stockholders Equity [Abstract]
Dividends rate per share																	$ 0.11
Special Dividend Paid [Member]
Stockholders Equity [Abstract]
Dividends rate per share															$ 0.26
Dividend payable amount															$ 97
Subsequent Event
Stockholders Equity [Abstract]
Dividend payable, year																			2023
Dividends payable, per share																			$ 0.89
Subsequent Event | Fixed Dividend [Member]
Stockholders Equity [Abstract]
Percentage of increase to quarterly dividend			11.00%
Dividends rate per share	$ 0.20
Dividend payable amount																			$ 130
Subsequent Event | Fixed Dividend [Member] | Maximum [Member]
Stockholders Equity [Abstract]
Dividends rate per share			$ 0.20
Subsequent Event | Variable Dividend [Member]
Stockholders Equity [Abstract]
Dividend payable amount																			$ 449
Dividends payable, per share																			$ 0.69
Share Repurchase Program [Member]
Stockholders Equity [Abstract]
Share-repurchase program, authorized amount		$ 1,600			$ 1,000
Share-repurchase program expiration date		May 31, 2022			Dec. 31, 2022
1.0 Billion Dollar Share Repurchase Program Closed [Member]
Stockholders Equity [Abstract]
Share-repurchase program, authorized amount						$ 1,000
Share-repurchase program expiration date						Dec. 31, 2020
2.0 Billion Dollar Share Repurchase Program Open [Member]
Stockholders Equity [Abstract]
Share-repurchase program, authorized amount				$ 2,000
Share-repurchase program expiration date				May 04, 2023

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