Segment Information Net Sales Attributed to Countries Representing Portion of Consolidated Net Sales (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Revenue Reconciling Item
Total net sales	$ 125,555	$ 96,145	$ 88,912	$ 75,452	$ 87,437	$ 69,981	$ 63,404	$ 59,700	$ 386,064	$ 280,522	$ 232,887
United States
Segment Reporting, Revenue Reconciling Item
Total net sales									263,520	193,636	160,146
Germany
Segment Reporting, Revenue Reconciling Item
Total net sales									29,565	22,232	19,881
United Kingdom
Segment Reporting, Revenue Reconciling Item
Total net sales									26,483	17,527	14,524
Japan
Segment Reporting, Revenue Reconciling Item
Total net sales									20,461	16,002	13,829
Rest of world
Segment Reporting, Revenue Reconciling Item
Total net sales									$ 46,035	$ 31,125	$ 24,507