Financing Activities Financing Activities- Equity Securities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		1 Months Ended	12 Months Ended
		Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity Programs [Line Items]
Treasury Stock, Value, Acquired, Cost Method				$ 1,003
Payments for Repurchase of Redeemable Noncontrolling Interest		$ 3
Preferred Stock Redeemed, Prorated Dividend, Per Share		$ 0.1875
Preferred Stock Redemption, Premium, Per Share		$ 5
Common Stock [Member]
Equity Programs [Line Items]
Common stock shares issued	[1]		123	983
Treasury stock				(34,778)
Treasury Stock
Equity Programs [Line Items]
Treasury Stock, Value, Acquired, Cost Method				$ 1,003

[1] Shares in thousands. Each share entitles the holder to one vote on any question presented at any shareowners' meeting.