Debt Fixed-rate Notes and Other (Details 1) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Long-Term Debt (Table Amounts) [Abstract]
Long-term debt	$ 12,783
Other long-term debt	205	$ 235
Debt issuance costs	(65)	(75)
Total long-term debt	12,783	15,003
Less: current portion	6	742
Long-term Debt and Lease Obligation	$ 12,777	14,261
2021
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	3.50%
Long-term debt	$ 0	700
2022
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	2.55%
Long-term debt	$ 0	1,500
2023
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Long-term debt	$ 1,050	1,050
2025
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	2.93%
Long-term debt	$ 1,500	1,500
2026
Long-Term Debt (Table Amounts) [Abstract]
Long-term debt	$ 527	527
2027
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	3.20%
Long-term debt	$ 750	750
2028
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Long-term debt	$ 2,000	2,000
2031
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	7.75%
Long-term debt	$ 466	466
2040
Long-Term Debt (Table Amounts) [Abstract]
Long-term debt	$ 800	800
2043
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Long-term debt	$ 950	950
2045
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	3.85%
Long-term debt	$ 600	600
2047
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	4.03%
Long-term debt	$ 2,250	2,250
Two Thousand Fifty
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Long-term debt	$ 1,000	1,000
Two Thousand Thirty
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	4.40%
Long-term debt	$ 750	$ 750
Minimum \| 2026
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	7.75%
Minimum \| 2040
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	5.05%
Maximum \| 2026
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	7.88%
Maximum \| 2040
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	5.15%

Amount of short-term and long-term debt and lease obligation.

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