Revenue Contract Balances (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Accounts and notes receivable - trade	[1]	$ 6,029	$ 5,764	$ 3,561
Contract assets - current	[2]	24	22	24
Contract assets - noncurrent	[3]	58	53	58
Deferred Revenue		2,435	2,247	3,201
Deferred revenue recognized during the period		1,339	924
Accrued and Other Current Liabilities [Member]
Disaggregation of Revenue [Line Items]
Deferred Revenue		2,435	2,247	3,201
Other noncurrent obligations
Disaggregation of Revenue [Line Items]
Deferred Revenue	[4]	$ 104	$ 111	$ 120

[1] Included in accounts and notes receivable - net in the interim Consolidated Balance Sheets.

[2] Included in other current assets in the interim Consolidated Balance Sheets.

[3] Included in other assets in the interim Consolidated Balance Sheets.

[4] Included in other noncurrent obligations in the interim Consolidated Balance Sheets.