Income Taxes Reconciliation of the beginning and ending amount of unrecognized tax benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits, beginning of period	$ 2,310	$ 1,829	$ 1,423
Current year tax positions	586	538	416
Prior year tax positions, gross increases	206	10	120
Prior year tax positions, gross decreases	(21)	(47)	(130)
Statute of limitations lapses	0	(20)	0
Gross unrecognized tax benefits, end of period	$ 3,081	$ 2,310	$ 1,829