Borrowings and Lines of Credit (Schedule of Long-term Debt Instruments) (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Debt Instrument, Carrying Amount	$ 31,300		$ 31,470
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	51		106
Other debt (including capitalized leases)	270		292
Long-term Debt	31,351		31,576
Long-term debt currently due	24		550
Long-term debt	$ 31,327		31,026
Notes 8.750% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2021
Debt Instrument, Interest Rate, Stated Percentage	8.75%	8.75%
Debt Instrument, Carrying Amount	$ 0		250
Notes 3.100% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2021
Debt Instrument, Interest Rate, Stated Percentage	3.10%	3.10%
Debt Instrument, Carrying Amount	$ 0		250
Notes 2.800% Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2022
Debt Instrument, Interest Rate, Stated Percentage	2.80%	2.80%
Debt Instrument, Carrying Amount	$ 0		1,100
Notes 2.500% Due 2022
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2022
Debt Instrument, Interest Rate, Stated Percentage	2.50%	2.50%
Debt Instrument, Carrying Amount	$ 0		1,100
Notes 3.650% Due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2023
Debt Instrument, Interest Rate, Stated Percentage	3.65%	3.65%
Debt Instrument, Carrying Amount	$ 171		171
Notes 3.700% Due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2023
Debt Instrument, Interest Rate, Stated Percentage	3.70%	3.70%
Debt Instrument, Carrying Amount	$ 400		400
Notes 3.200% Due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2024
Debt Instrument, Interest Rate, Stated Percentage	3.20%	3.20%
Debt Instrument, Carrying Amount	$ 950		950
Notes 3.150% Due 2024
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2024
Debt Instrument, Interest Rate, Stated Percentage	3.15%	3.15%
Debt Instrument, Carrying Amount	$ 300		300
Notes 3.950% Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2025
Debt Instrument, Interest Rate, Stated Percentage	3.95%	3.95%
Debt Instrument, Carrying Amount	$ 1,500		1,500
Notes 2.650% Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2026
Debt Instrument, Interest Rate, Stated Percentage	2.65%	2.65%
Debt Instrument, Carrying Amount	$ 719		719
Notes 3.125% Due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2027
Debt Instrument, Interest Rate, Stated Percentage	3.125%	3.125%
Debt Instrument, Carrying Amount	$ 1,100		1,100
Notes 3.500% Due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2027
Debt Instrument, Interest Rate, Stated Percentage	3.50%	3.50%
Debt Instrument, Carrying Amount	$ 1,300		1,300
Notes 7.200% Due 2027
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2027
Debt Instrument, Interest Rate, Stated Percentage	7.20%	7.20%
Debt Instrument, Carrying Amount	$ 382		382
Notes 7.100% Due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2027
Debt Instrument, Interest Rate, Stated Percentage	7.10%	7.10%
Debt Instrument, Carrying Amount	$ 135		141
Notes 6.700% Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2028
Debt Instrument, Interest Rate, Stated Percentage	6.70%	6.70%
Debt Instrument, Carrying Amount	$ 285		400
Notes 7.000% Due 2028
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2028
Debt Instrument, Interest Rate, Stated Percentage	7.00%	7.00%
Debt Instrument, Carrying Amount	$ 185		185
Notes 4.125% Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2028
Debt Instrument, Interest Rate, Stated Percentage	4.125%	4.125%
Debt Instrument, Carrying Amount	$ 3,000		3,000
Notes 7.500% Due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2029
Debt Instrument, Interest Rate, Stated Percentage	7.50%	7.50%
Debt Instrument, Carrying Amount	$ 414		550
Notes 2.150% Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2030
Debt Instrument, Interest Rate, Stated Percentage	2.15%	2.15%
Debt Instrument, Carrying Amount	$ 565		612
Debt Instrument, Face Amount | €		€ 500
Notes 2.250% Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2030
Debt Instrument, Interest Rate, Stated Percentage	2.25%	2.25%
Debt Instrument, Carrying Amount	$ 1,000		1,000
Notes 1.900% due 2031
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2031
Debt Instrument, Interest Rate, Stated Percentage	1.90%	1.90%
Debt Instrument, Carrying Amount	$ 1,000		0
Notes 2.375% due 2032
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2032
Debt Instrument, Interest Rate, Stated Percentage	2.375%	2.375%
Debt Instrument, Carrying Amount	$ 1,000		0
Notes 5.400% Due 2035 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2035
Debt Instrument, Interest Rate, Stated Percentage	5.40%	5.40%
Debt Instrument, Carrying Amount	$ 446		600
Notes 6.050% Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2036
Debt Instrument, Interest Rate, Stated Percentage	6.05%	6.05%
Debt Instrument, Carrying Amount	$ 410		600
Notes 6.800% Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2036
Debt Instrument, Interest Rate, Stated Percentage	6.80%	6.80%
Debt Instrument, Carrying Amount	$ 117		134
Notes 7.000% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2038
Debt Instrument, Interest Rate, Stated Percentage	7.00%	7.00%
Debt Instrument, Carrying Amount	$ 148		159
Notes 6.125% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2038
Debt Instrument, Interest Rate, Stated Percentage	6.125%	6.125%
Debt Instrument, Carrying Amount	$ 575		1,000
Notes 4.450% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2038
Debt Instrument, Interest Rate, Stated Percentage	4.45%	4.45%
Debt Instrument, Carrying Amount	$ 750		750
Notes 5.700% Due 2040 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2040
Debt Instrument, Interest Rate, Stated Percentage	5.70%	5.70%
Debt Instrument, Carrying Amount	$ 553		1,000
Notes 4.875% Due 2040
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2040
Debt Instrument, Interest Rate, Stated Percentage	4.875%	4.875%
Debt Instrument, Carrying Amount	$ 600		600
Notes 4.700% Due 2041
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2041
Debt Instrument, Interest Rate, Stated Percentage	4.70%	4.70%
Debt Instrument, Carrying Amount	$ 425		425
Notes 4.500% Due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2042
Debt Instrument, Interest Rate, Stated Percentage	4.50%	4.50%
Debt Instrument, Carrying Amount	$ 3,500		3,500
Notes 4.800% Due 2043 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2043
Debt Instrument, Interest Rate, Stated Percentage	4.80%	4.80%
Debt Instrument, Carrying Amount	$ 400		400
Notes 4.200% Due 2044
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2044
Debt Instrument, Interest Rate, Stated Percentage	4.20%	4.20%
Debt Instrument, Carrying Amount	$ 300		300
Notes 4.150% Due 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2045
Debt Instrument, Interest Rate, Stated Percentage	4.15%	4.15%
Debt Instrument, Carrying Amount	$ 850		850
Notes 3.750% Due 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2046
Debt Instrument, Interest Rate, Stated Percentage	3.75%	3.75%
Debt Instrument, Carrying Amount	$ 1,100		1,100
Notes 4.050% Due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2047
Debt Instrument, Interest Rate, Stated Percentage	4.05%	4.05%
Debt Instrument, Carrying Amount	$ 600		600
Notes 4.350% Due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2047
Debt Instrument, Interest Rate, Stated Percentage	4.35%	4.35%
Debt Instrument, Carrying Amount	$ 1,000		1,000
Notes 4.625% Due 2048 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2048
Debt Instrument, Interest Rate, Stated Percentage	4.625%	4.625%
Debt Instrument, Carrying Amount	$ 1,750		1,750
Notes 3.125% Due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2050
Debt Instrument, Interest Rate, Stated Percentage	3.125%	3.125%
Debt Instrument, Carrying Amount	$ 1,000		1,000
Notes 2.820% due 2051
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2051
Debt Instrument, Interest Rate, Stated Percentage	2.82%	2.82%
Debt Instrument, Carrying Amount	$ 1,000		0
Notes 3.030% Due 2052
Debt Instrument [Line Items]
Debt Instrument, Maturity Year Date	2052
Debt Instrument, Interest Rate, Stated Percentage	3.03%	3.03%
Debt Instrument, Carrying Amount	$ 1,100		$ 0