Financial Instruments - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Loss on equity securities	$ 1,000,000	$ 5,000,000
Original investment	56,000,000	554,000,000
Investment securities	1,041,000,000	1,532,000,000
Assets	29,000,000	118,000,000
Derivative liability	49,000,000	52,000,000
Notional amount	$ 3,900,000,000	$ 7,000,000,000
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term	1 year	1 year
3.337% Senior Notes due December 2027
Derivative Instruments, Gain (Loss) [Line Items]
Fixed rate	3.337%
3.337% Senior Notes due December 2027 \| Senior Notes
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate principal amount	$ 1,350,000,000
Fixed rate	3.337%
Interest rate swap contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	$ 500,000,000
All other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Investment securities	1,041,000,000	$ 1,514,000,000
Assets	28,000,000	115,000,000
All other assets
Derivative Instruments, Gain (Loss) [Line Items]
Investment securities	0	18,000,000
Assets	1,000,000	3,000,000
All other current liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability	39,000,000	48,000,000
All other liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability	10,000,000	4,000,000
C3 AI
Derivative Instruments, Gain (Loss) [Line Items]
Equity securities economic interest fair value	$ 270,000,000	1,500,000,000
Investment shares owned (in shares)	8,650,476
Investments owned, number of shares sold (in shares)	2,200,000
Proceeds from sale of long-term investments	$ 145,000,000
Loss on equity securities	1,085,000,000	1,417,000,000
ADNOC Drilling
Derivative Instruments, Gain (Loss) [Line Items]
Equity securities economic interest fair value	$ 741,000,000
Investment shares owned (in shares)	800,000,000,000,000
Original investment		$ 500,000,000
Mark to market unrealized gain	$ 241,000,000
ADNOC Drilling \| ADNOC Drilling
Derivative Instruments, Gain (Loss) [Line Items]
Investment percent		5.00%
Level 3
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on Level 3 instruments held at reporting date	$ 0

Equity Securities without Readily Determinable Fair Value, Ownership Percentage

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Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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