Debt and Other Obligations Contractual Maturities (Details) - USD ($) $ in Millions		Mar. 31, 2023	Dec. 31, 2022
Contractual Obligation, Fiscal Year Maturity Schedule [Abstract]
Long-Term Debt, Maturity, remainder of year	[1]	$ 1,520
Long-Term Debt, Maturity, Year One		832
Long-Term Debt, Maturity, Year Two		594
Long-Term Debt, Maturity, Year Three		2,773
Long-Term Debt, Maturity, Year Four		4,678
Long-Term Debt, Maturity, after Year Five		12,091
Total Cash Obligations		22,488
Unamortized Adjustments, Net		(156)
Debt and Finance Lease Obligations		$ 22,332	$ 21,729

[1] Predominately consists of outstanding indebtedness under the CP Program as discussed in footnote (g) of the preceding table and $750 million aggregate principal amount of 3.150% senior unsecured notes ("3.150% Senior Notes").