Fair Value of Financial Instruments (Unaudited) Long-term Debt (Details 3) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 01, 2021
Debt Instruments [Abstract]
Long-term Debt, Fair Value		$ 13,800	$ 15,100
2021 Note, Face Amount				$ 700
2021 Note, Interest Rate, Stated Percentage				3.50%
2022 Note, Face Amount				$ 1,500
2022 Note, Interest Rate, Stated Percentage				2.55%
Redemption Premium	$ 54