Fair Value Measurements Fair Value Measurement Recurring Basis (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Derivative Asset, Foreign Currency		$ 71	$ 55
Derivative Liability, Foreign Currency		26	135
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Marketable securities		86	43
Total assets at fair value		154	98
Total Liabilities at fair value		24	135
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Contract [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Derivative Asset, Foreign Currency	[1]	68	55
Derivative Liability, Foreign Currency	[1]	24	135
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Equity Securities	[2]	48
Total assets at fair value		48	226
Total Liabilities at fair value		$ 0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Treasury Securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Available-for-sale securities	[3]		$ 226

[1] See Note 22 - Financial Instruments, to the Consolidated Financial Statements, for the classification of derivatives in the Consolidated Balance Sheets.

[2] The company's equity securities are included in "other assets" in the Consolidated Balance Sheets.

[3] The company's investments in U.S. treasuries, which are primarily available-for-sale, are included in "marketable securities" in the Consolidated Balance Sheets.