Leases - Supplemental information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash paid for amounts included in the measurements of lease liabilities:
Operating cash flows from operating leases	$ (87)	$ (71)
Financing cash outflows for finance leases	(2)	(1)
ROU assets obtained in exchange for lease obligations:
Operating lease obligations	182	97
Finance lease obligations	$ 5	$ 12
Supplemental balance sheet information
Balance sheet location for operating lease assets	Other assets	Other assets
Operating lease right-of-use assets	$ 420	$ 302
Balance sheet location for operating lease current liabilities	Other current liabilities	Other current liabilities
Current operating lease liabilities	$ 80	$ 63
Balance sheet location for operating lease noncurrent liabilities	Other liabilities	Other liabilities
Noncurrent operating lease liabilities	$ 340	$ 232
Balance sheet location for finance lease assets	Property, plant and equipment, net	Property, plant and equipment, net
Finance lease ROU assets, net	$ 14	$ 11
Balance sheet location for finance lease current liabilities	Short-term debt and current portion of long-term debt	Short-term debt and current portion of long-term debt
Current finance lease liabilities	$ 2	$ 2
Balance sheet location for finance lease noncurrent liabilities	Long-term debt	Long-term debt
Noncurrent finance lease liabilities	$ 12	$ 10