Supplemental Financial Information (Tables)

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of cash payments for interest and income taxes

Cash Payments for Interest and Income Taxes
Year ended December 31 (in millions)	2021		2020		2019
Interest	$	3,908	$	3,878	$	4,254
Income taxes	$	2,628	$	3,183	$	3,231

Schedule of cash, cash equivalents and restricted cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported in the consolidated balance sheet to the total of the amounts reported in our consolidated statement of cash flows.

December 31 (in millions)	2021		2020
Cash and cash equivalents	$	8,711	$	11,740
Restricted cash included in other current assets	56		14
Restricted cash included in other noncurrent assets, net	12		14
Cash, cash equivalents and restricted cash, end of year	$	8,778	$	11,768