Financing (LYONS) (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2001 USD ($)	Dec. 31, 2023 $ / shares	Dec. 31, 2022 $ / shares
Debt Instrument [Line Items]
Common stock par value (in usd per share) | $ / shares	$ 0.01		$ 0.01	$ 0.01
Convertible debt | Zero-coupon LYONS due 2021
Debt Instrument [Line Items]
Debt instrument, face amount		$ 830
Debt instrument, convertible, conversion ratio		0.381998
Debt conversion, converted instrument, shares issued | shares	912
Debt conversion, converted instrument, deferred tax liability	$ 10